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<a class="vector-toc-link" href="#elasticity/plasticity_edit"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>elasticity/plasticity edit</span> </div> </a> <ul id="toc-elasticity/plasticity_edit-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Proposed_merger" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Proposed_merger"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Proposed merger</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">2 comments</span> <ul id="toc-Proposed_merger-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Fixes_and_additions" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Fixes_and_additions"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Fixes and additions</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">4 comments</span> <ul id="toc-Fixes_and_additions-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Structural_strength" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Structural_strength"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Structural strength</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-Structural_strength-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Case_studies" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Case_studies"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Case studies</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-Case_studies-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-page_history" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#page_history"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>page history</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-page_history-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Split_article?" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Split_article?"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Split article?</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">3 comments</span> <ul id="toc-Split_article?-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-strength_of_materials._Basic_assumptions" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#strength_of_materials._Basic_assumptions"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>strength of materials. Basic assumptions</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-strength_of_materials._Basic_assumptions-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-First_paragraph" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#First_paragraph"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>First paragraph</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-First_paragraph-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cut_and_paste_of_material_into_the_article" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cut_and_paste_of_material_into_the_article"> <div class="vector-toc-text"> <span class="vector-toc-numb">11</span> <span>Cut and paste of material into the article</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-Cut_and_paste_of_material_into_the_article-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Things_to_improve" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Things_to_improve"> <div class="vector-toc-text"> <span class="vector-toc-numb">12</span> <span>Things to improve</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-Things_to_improve-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Screwy_sentence" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Screwy_sentence"> <div class="vector-toc-text"> <span class="vector-toc-numb">13</span> <span>Screwy sentence</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">1 comment</span> <ul id="toc-Screwy_sentence-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Strength_of_Materials_vs_Solid_Mechanics?" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Strength_of_Materials_vs_Solid_Mechanics?"> <div class="vector-toc-text"> <span class="vector-toc-numb">14</span> <span>Strength of Materials vs Solid Mechanics?</span> </div> </a> <span class="ext-discussiontools-init-sidebar-meta">2 comments</span> <ul id="toc-Strength_of_Materials_vs_Solid_Mechanics?-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-namespace">Talk</span><span class="mw-page-title-separator">:</span><span class="mw-page-title-main">Strength of materials</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang mw-portlet-lang-icon-only" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector-empty" aria-label="This article exist only in this language. 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If you would like to participate, please visit the project page, where you can join <a href="/wiki/Wikipedia_talk:WikiProject_Physics" title="Wikipedia talk:WikiProject Physics">the discussion</a> and see a list of open tasks.<span class="metadata wpb-metadata"><span class="wpb-project">Physics</span><span class="wpb-project_link">Wikipedia:WikiProject Physics</span><span class="wpb-banner_name">Template:WikiProject Physics</span><span class="wpb-assessment_cat">physics articles</span></span></td><td class="mbox-empty-cell"></td></tr><tr><td class="assess import-low"><a href="/wiki/Category:Low-importance_physics_articles" title="Category:Low-importance physics articles">Low</a></td><td class="mbox-text" colspan="2">This article has been rated as <b>Low-importance</b> on the <a href="/wiki/Wikipedia:WikiProject_Physics/Quality_Control#Importance_scale" title="Wikipedia:WikiProject Physics/Quality Control">project's importance scale</a>.</td></tr></tbody></table></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1237879475"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1256394742"><table class="tmbox tmbox-notice mw-collapsible innercollapse wpb wpb-table"><tbody><tr class="wpb-header"><td class="wpb-header-icon"><span typeof="mw:File"><a href="/wiki/File:Suspension_bridge_pattern_german2.svg" class="mw-file-description"><img alt="WikiProject icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Suspension_bridge_pattern_german2.svg/35px-Suspension_bridge_pattern_german2.svg.png" decoding="async" width="35" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Suspension_bridge_pattern_german2.svg/53px-Suspension_bridge_pattern_german2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Suspension_bridge_pattern_german2.svg/70px-Suspension_bridge_pattern_german2.svg.png 2x" data-file-width="840" data-file-height="474"/></a></span></td><td class="wpb-header-combined"><a href="/wiki/Wikipedia:WikiProject_Civil_engineering" title="Wikipedia:WikiProject Civil engineering">Civil engineering</a> </td></tr><tr><td class="mbox-text wpb-main" colspan="2"><table><tbody><tr><td class="mbox-image wpb-image"><span typeof="mw:File"><a href="/wiki/File:Suspension_bridge_pattern_german2.svg" class="mw-file-description"><img alt="WikiProject icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Suspension_bridge_pattern_german2.svg/80px-Suspension_bridge_pattern_german2.svg.png" decoding="async" width="80" height="45" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Suspension_bridge_pattern_german2.svg/120px-Suspension_bridge_pattern_german2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Suspension_bridge_pattern_german2.svg/160px-Suspension_bridge_pattern_german2.svg.png 2x" data-file-width="840" data-file-height="474"/></a></span></td><td class="mbox-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239009302"><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Nuvola_apps_kcmsystem.svg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Nuvola_apps_kcmsystem.svg/28px-Nuvola_apps_kcmsystem.svg.png" decoding="async" width="28" height="28" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Nuvola_apps_kcmsystem.svg/42px-Nuvola_apps_kcmsystem.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Nuvola_apps_kcmsystem.svg/56px-Nuvola_apps_kcmsystem.svg.png 2x" data-file-width="128" data-file-height="128"/></a></span></span><span class="portalbox-link"><a href="/wiki/Portal:Engineering" title="Portal:Engineering">Engineering portal</a></span></li></ul>This article is within the scope of <b><a href="/wiki/Wikipedia:WikiProject_Civil_engineering" title="Wikipedia:WikiProject Civil engineering">WikiProject Civil engineering</a></b>, a collaborative effort to improve the coverage of <a href="/wiki/Civil_engineering" title="Civil engineering">Civil engineering</a> on Wikipedia. If you would like to participate, please visit the project page, where you can join <a href="/wiki/Wikipedia_talk:WikiProject_Civil_engineering" title="Wikipedia talk:WikiProject Civil engineering">the discussion</a> and see a list of open tasks.<span class="metadata wpb-metadata"><span class="wpb-project">Civil engineering</span><span class="wpb-project_link">Wikipedia:WikiProject Civil engineering</span><span class="wpb-banner_name">Template:WikiProject Civil engineering</span><span class="wpb-assessment_cat">CE articles</span></span></td><td class="mbox-empty-cell"></td></tr><tr><td class="assess import-unknown"><a href="/wiki/Category:Unknown-importance_CE_articles" title="Category:Unknown-importance CE articles">???</a></td><td class="mbox-text" colspan="2">This article has not yet received a rating on the <a href="/wiki/Wikipedia:WikiProject_Civil_engineering/Assessment#Importance_scale" title="Wikipedia:WikiProject Civil engineering/Assessment">project's importance scale</a>.</td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table> <meta property="mw:PageProp/toc"/> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Materials_science" data-mw-thread-id="h-Materials_science-2006-05-31T13:08:00.000Z"><span data-mw-comment-start="" id="h-Materials_science-2006-05-31T13:08:00.000Z"></span>Materials science<span data-mw-comment-end="h-Materials_science-2006-05-31T13:08:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=1" title="Edit section: Materials science"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><a href="/wiki/Materials_science" title="Materials science"><span data-mw-comment-start="" id="c-CoolMike-2006-05-31T13:08:00.000Z-Materials_science"></span>Materials science</a> differs from this in what way? <small>—Preceding <a href="/wiki/Wikipedia:Signatures" title="Wikipedia:Signatures">unsigned</a> comment added by <a href="/wiki/User:Sparky" title="User:Sparky">Sparky</a> (<a href="/wiki/User_talk:Sparky" title="User talk:Sparky">talk</a> • <a href="/wiki/Special:Contributions/Sparky" title="Special:Contributions/Sparky">contribs</a>) 07:50, January 22, 2004 </small> </p> <ul><li>(you can sign your dated name by adding four tildas. Oh, by the way, Hi Sparky)</li></ul> <ol><li><a href="/wiki/Materials_science" title="Materials science">Materials science</a> is far broader.</li> <li>Academically, they are taught as different subjects.</li> <li>In the real world, engineers use these disciplines separately; Materials science involves the development or choice of materials for engineering uses, and Strength of materials is applied to the design of mechanical elements. They are sometimes used in parallel and sometimes overlap. For example, a design engineer choosing a material for a specific application. But they are not the same subject. Professionally, material science is a different occupation than Design engineering or Analysis.</li></ol> <p><a href="/w/index.php?title=User:Pud&action=edit&redlink=1" class="new" title="User:Pud (page does not exist)">Pud</a> 20:52, 7 Sep 2004 (UTC) </p> <ol><li>Tensile Strength is a very important test for many materials (suture materials for example) Merging this article into strength of materials would be a diservice to the community. Are we going to start a trend of merging all subtopics into their parent topics? Who wants to read a 60 page article on all the types and measurments of a material's strength? <a href="/wiki/User:CoolMike" title="User:CoolMike">CoolMike</a> <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-CoolMike-2006-05-31T13:08:00.000Z-Materials_science" class="ext-discussiontools-init-timestamplink">13:08, 31 May 2006 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-CoolMike-2006-05-31T13:08:00.000Z-Materials_science"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-CoolMike-2006-05-31T13:08:00.000Z-Materials_science"></span></li> <li><span data-mw-comment-start="" id="c-122.181.135.140-2011-01-27T13:21:00.000Z-CoolMike-2006-05-31T13:08:00.000Z"></span>Tensile stress is the most important test to check the ability of the material <span style="font-size: smaller;" class="autosigned">—Preceding <a href="/wiki/Wikipedia:Signatures" title="Wikipedia:Signatures">unsigned</a> comment added by <a href="/wiki/Special:Contributions/122.181.135.140" title="Special:Contributions/122.181.135.140">122.181.135.140</a> (<a href="/w/index.php?title=User_talk:122.181.135.140&action=edit&redlink=1" class="new" title="User talk:122.181.135.140 (page does not exist)">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-122.181.135.140-2011-01-27T13:21:00.000Z-CoolMike-2006-05-31T13:08:00.000Z" class="ext-discussiontools-init-timestamplink">13:21, 27 January 2011 (UTC)</a><span data-mw-comment-end="c-122.181.135.140-2011-01-27T13:21:00.000Z-CoolMike-2006-05-31T13:08:00.000Z"></span></span><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-122.181.135.140-2011-01-27T13:21:00.000Z-CoolMike-2006-05-31T13:08:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span></li></ol> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="elasticity/plasticity_edit" data-mw-thread-id="h-elasticity/plasticity_edit"><span id="elasticity.2Fplasticity_edit"></span><span data-mw-comment-start="" id="h-elasticity/plasticity_edit"></span>elasticity/plasticity edit<span data-mw-comment-end="h-elasticity/plasticity_edit"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=2" title="Edit section: elasticity/plasticity edit"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>I decided to replace the existing text with a plain-English explanation of the concepts of elasticity and plasticity. I also deleted the paragraph about <b>viscosity</b>. Although I can see why creep is relevant, I did not feel like taking the effort to massage it into the section. Viscosity relates to fluids, and the article relates to solids, so I think it is out of place. </p><p>I will sign this properly when the servers come back up. <a href="/w/index.php?title=Cbdorsett&action=edit&redlink=1" class="new" title="Cbdorsett (page does not exist)">Cbdorsett</a> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Proposed_merger" data-mw-thread-id="h-Proposed_merger-2006-01-11T18:01:00.000Z"><span data-mw-comment-start="" id="h-Proposed_merger-2006-01-11T18:01:00.000Z"></span>Proposed merger<span data-mw-comment-end="h-Proposed_merger-2006-01-11T18:01:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=3" title="Edit section: Proposed merger"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-Slinky_Puppet-2006-01-11T18:01:00.000Z-Proposed_merger"></span>Please see the <a href="/wiki/Talk:Tensile_strength#Proposed_merger" class="mw-redirect" title="Talk:Tensile strength">Talk:Tensile strength#Proposed merger</a> page for discussion (if any) <a href="/wiki/User:Slinky_Puppet" title="User:Slinky Puppet">Slinky Puppet</a> <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Slinky_Puppet-2006-01-11T18:01:00.000Z-Proposed_merger" class="ext-discussiontools-init-timestamplink">18:01, 11 January 2006 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Slinky_Puppet-2006-01-11T18:01:00.000Z-Proposed_merger"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Slinky_Puppet-2006-01-11T18:01:00.000Z-Proposed_merger"></span> </p> <dl><dd><span data-mw-comment-start="" id="c-Georgewilliamherbert-2006-09-22T01:29:00.000Z-Slinky_Puppet-2006-01-11T18:01:00.000Z"></span>No support, I am calling off the merger and removing the links. <a href="/wiki/User:Georgewilliamherbert" title="User:Georgewilliamherbert">Georgewilliamherbert</a> <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Georgewilliamherbert-2006-09-22T01:29:00.000Z-Slinky_Puppet-2006-01-11T18:01:00.000Z" class="ext-discussiontools-init-timestamplink">01:29, 22 September 2006 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Georgewilliamherbert-2006-09-22T01:29:00.000Z-Slinky_Puppet-2006-01-11T18:01:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Georgewilliamherbert-2006-09-22T01:29:00.000Z-Slinky_Puppet-2006-01-11T18:01:00.000Z"></span></dd></dl> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Fixes_and_additions" data-mw-thread-id="h-Fixes_and_additions-2006-06-21T17:30:00.000Z"><span data-mw-comment-start="" id="h-Fixes_and_additions-2006-06-21T17:30:00.000Z"></span>Fixes and additions<span data-mw-comment-end="h-Fixes_and_additions-2006-06-21T17:30:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=4" title="Edit section: Fixes and additions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-RMWhite-2006-06-21T17:30:00.000Z-Fixes_and_additions"></span>I fixed a bunch of stuff that was clearly wrong, and took out some stuff which didn't make sense. </p><p>I removed the part about Hooke's Law, as it doesn't belong in a strength of materials article, and will only confuse readers about the stress-strain relationship. </p><p>I also removed the comment about compressive stress that stated a material under compression will decrease in volume. This is simply wrong and needed to be removed. Sorry if I stepped on any toes, but I looked this up at work and my head almost exploded when I read it. </p><p>--<a href="/w/index.php?title=User:RMWhite&action=edit&redlink=1" class="new" title="User:RMWhite (page does not exist)">Ryan</a> <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-RMWhite-2006-06-21T17:30:00.000Z-Fixes_and_additions" class="ext-discussiontools-init-timestamplink">17:30, 21 June 2006 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-RMWhite-2006-06-21T17:30:00.000Z-Fixes_and_additions"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-RMWhite-2006-06-21T17:30:00.000Z-Fixes_and_additions"></span> </p> <dl><dd><span data-mw-comment-start="" id="c-Sigmund-2007-06-20T11:58:00.000Z-RMWhite-2006-06-21T17:30:00.000Z"></span>Most materials will in fact decrease in volume under compression. Look up the article on Poisson's ratio on wikipedia or google "volume strain". In my opinion, Hooke's law should be mentioned, as well as basic structural analysis methods. This article should reflect the topics covered in common ""Strength of materials"" engineering courses and books, which focus on stress-strain relations, beam and truss analysis, continuum mechanics, and material strength terms. <a href="/w/index.php?title=User:Sigmund&action=edit&redlink=1" class="new" title="User:Sigmund (page does not exist)">Sigmund</a> <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Sigmund-2007-06-20T11:58:00.000Z-RMWhite-2006-06-21T17:30:00.000Z" class="ext-discussiontools-init-timestamplink">11:58, 20 June 2007 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Sigmund-2007-06-20T11:58:00.000Z-RMWhite-2006-06-21T17:30:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Sigmund-2007-06-20T11:58:00.000Z-RMWhite-2006-06-21T17:30:00.000Z"></span></dd></dl> <dl><dd><dl><dd><span data-mw-comment-start="" id="c-Kalivd-2008-09-24T15:19:00.000Z-Sigmund-2007-06-20T11:58:00.000Z"></span>About Hooke's law i think it should be added as it is mentioned in almost every book written on strength of materials and has a clear distinction to be added here. <a href="/wiki/User:Kalivd" title="User:Kalivd">Kalivd</a> (<a href="/wiki/User_talk:Kalivd" title="User talk:Kalivd">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Kalivd-2008-09-24T15:19:00.000Z-Sigmund-2007-06-20T11:58:00.000Z" class="ext-discussiontools-init-timestamplink">15:19, 24 September 2008 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Kalivd-2008-09-24T15:19:00.000Z-Sigmund-2007-06-20T11:58:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Kalivd-2008-09-24T15:19:00.000Z-Sigmund-2007-06-20T11:58:00.000Z"></span></dd></dl></dd></dl> <dl><dd><dl><dd><dl><dd><span data-mw-comment-start="" id="c-Logger9-2009-04-14T17:13:00.000Z-Kalivd-2008-09-24T15:19:00.000Z"></span>I also think that at least a brief mention of Hooke's Law is essential, as it provides the foundation for the theory of elasticity. (Any readers "confused" by it are likely barking up the wrong proverbial tree!). Fortunately, it is amply described and referenced in a number of other closely related articles on elasticity theory, such as <a href="/wiki/Solid_mechanics" title="Solid mechanics">solid mechanics</a>, <a href="/wiki/Theory_of_elasticity" class="mw-redirect" title="Theory of elasticity">theory of elasticity</a> and <a href="/wiki/Deformation_(engineering)" title="Deformation (engineering)">deformation (engineering)</a>. -- <a href="/wiki/User:Logger9" title="User:Logger9">logger9</a> (<a href="/wiki/User_talk:Logger9" title="User talk:Logger9">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Logger9-2009-04-14T17:13:00.000Z-Kalivd-2008-09-24T15:19:00.000Z" class="ext-discussiontools-init-timestamplink">17:13, 14 April 2009 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Logger9-2009-04-14T17:13:00.000Z-Kalivd-2008-09-24T15:19:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Logger9-2009-04-14T17:13:00.000Z-Kalivd-2008-09-24T15:19:00.000Z"></span></dd></dl></dd></dl></dd></dl> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Structural_strength" data-mw-thread-id="h-Structural_strength-2007-06-17T11:55:00.000Z"><span data-mw-comment-start="" id="h-Structural_strength-2007-06-17T11:55:00.000Z"></span>Structural strength<span data-mw-comment-end="h-Structural_strength-2007-06-17T11:55:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=5" title="Edit section: Structural strength"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-Skarkkai-2007-06-17T11:55:00.000Z-Structural_strength"></span>A search for "structural strength" gives no useful results. My context is the use of that term on the <a href="/wiki/Hardboard" title="Hardboard">hardboard</a> article. Perhaps the term should be explained in this article? </p><p><a href="/w/index.php?title=User:Skarkkai&action=edit&redlink=1" class="new" title="User:Skarkkai (page does not exist)">Skarkkai</a> <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Skarkkai-2007-06-17T11:55:00.000Z-Structural_strength" class="ext-discussiontools-init-timestamplink">11:55, 17 June 2007 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Skarkkai-2007-06-17T11:55:00.000Z-Structural_strength"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Skarkkai-2007-06-17T11:55:00.000Z-Structural_strength"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Case_studies" data-mw-thread-id="h-Case_studies-2007-06-20T14:43:00.000Z"><span data-mw-comment-start="" id="h-Case_studies-2007-06-20T14:43:00.000Z"></span>Case studies<span data-mw-comment-end="h-Case_studies-2007-06-20T14:43:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=6" title="Edit section: Case studies"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-Peterlewis-2007-06-20T14:43:00.000Z-Case_studies"></span>The article is far too theoretical, so I have added an external link to real case studies of failure. The article itself also needs some cases as well. Any offers? <a href="/wiki/User:Peterlewis" title="User:Peterlewis">Peterlewis</a> 14:43, 20 June 2007 (UTC) we can use for the <span style="font-size: smaller;" class="autosigned">— Preceding <a href="/wiki/Wikipedia:Signatures" title="Wikipedia:Signatures">unsigned</a> comment added by <a href="/wiki/Special:Contributions/202.86.17.197" title="Special:Contributions/202.86.17.197">202.86.17.197</a> (<a href="/w/index.php?title=User_talk:202.86.17.197&action=edit&redlink=1" class="new" title="User talk:202.86.17.197 (page does not exist)">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Peterlewis-2007-06-20T14:43:00.000Z-Case_studies" class="ext-discussiontools-init-timestamplink">09:45, 3 December 2011 (UTC)</a></span><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Peterlewis-2007-06-20T14:43:00.000Z-Case_studies"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Peterlewis-2007-06-20T14:43:00.000Z-Case_studies"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="page_history" data-mw-thread-id="h-page_history-2008-09-27T05:46:00.000Z"><span data-mw-comment-start="" id="h-page_history-2008-09-27T05:46:00.000Z"></span>page history<span data-mw-comment-end="h-page_history-2008-09-27T05:46:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=7" title="Edit section: page history"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-69.140.152.55-2008-09-27T05:46:00.000Z-page_history"></span>Some content (for example, some of the bibliographic references) has been merged from <a class="external text" href="https://en.wikipedia.org/wiki/mechanics%20of%20materials?redirect=no">mechanics of materials</a>, a list of whose authors might be found <a class="external text" href="https://en.wikipedia.org/wiki/mechanics%20of%20materials?action=history">here</a>. <a href="/wiki/Special:Contributions/69.140.152.55" title="Special:Contributions/69.140.152.55">69.140.152.55</a> (<a href="/wiki/User_talk:69.140.152.55" title="User talk:69.140.152.55">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-69.140.152.55-2008-09-27T05:46:00.000Z-page_history" class="ext-discussiontools-init-timestamplink">05:46, 27 September 2008 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-69.140.152.55-2008-09-27T05:46:00.000Z-page_history"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-69.140.152.55-2008-09-27T05:46:00.000Z-page_history"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Split_article?" data-mw-thread-id="h-Split_article?-2008-11-22T19:53:00.000Z"><span id="Split_article.3F"></span><span data-mw-comment-start="" id="h-Split_article?-2008-11-22T19:53:00.000Z"></span>Split article?<span data-mw-comment-end="h-Split_article?-2008-11-22T19:53:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=8" title="Edit section: Split article?"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-Wolfkeeper-2008-11-22T19:53:00.000Z-Split_article?"></span>In the wikipedia an article is always supposed to be on a single definition, that's what makes it <a href="/wiki/Wikipedia:Wikipedia_is_not_a_dictionary" title="Wikipedia:Wikipedia is not a dictionary">WP:Wikipedia is not a dictionary</a>. There seems to be two separate uses of the term 'strength of materials'. One is the materials science term which analyses the response of an engineering material, the other seems to be about how structures behave. These are logically distinct, and should be separated. </p><p>Maybe something like: </p><p><a href="/w/index.php?title=Strength_of_materials_(material_science)&action=edit&redlink=1" class="new" title="Strength of materials (material science) (page does not exist)">Strength of materials (material science)</a> </p><p><a href="/w/index.php?title=Strength_of_materials_(structures)&action=edit&redlink=1" class="new" title="Strength of materials (structures) (page does not exist)">Strength of materials (structures)</a> </p><p>Comments?- (<a href="/wiki/User:Wolfkeeper" title="User:Wolfkeeper">User</a>) <b>Wolfkeeper</b> (<a href="/wiki/User_talk:Wolfkeeper" title="User talk:Wolfkeeper">Talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Wolfkeeper-2008-11-22T19:53:00.000Z-Split_article?" class="ext-discussiontools-init-timestamplink">19:53, 22 November 2008 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Wolfkeeper-2008-11-22T19:53:00.000Z-Split_article?"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Wolfkeeper-2008-11-22T19:53:00.000Z-Split_article?"></span> </p> <dl><dd><span data-mw-comment-start="" id="c-Fnlayson-2008-11-22T20:25:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z"></span>They are both fairly related. I don't think separate articles are needed for this. Also, there are other related structures articles already like <a href="/wiki/Solid_mechanics" title="Solid mechanics">Solid mechanics</a>, <a href="/wiki/Structural_analysis" title="Structural analysis">Structural analysis</a>, <a href="/wiki/Stress_analysis" class="mw-redirect" title="Stress analysis">Stress analysis</a>, <a href="/wiki/Elasticity_(physics)" title="Elasticity (physics)">Elasticity (physics)</a>, etc. -<a href="/wiki/User:Fnlayson" title="User:Fnlayson">Fnlayson</a> (<a href="/wiki/User_talk:Fnlayson" title="User talk:Fnlayson">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Fnlayson-2008-11-22T20:25:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z" class="ext-discussiontools-init-timestamplink">20:25, 22 November 2008 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Fnlayson-2008-11-22T20:25:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Fnlayson-2008-11-22T20:25:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z"></span></dd> <dd><span data-mw-comment-start="" id="c-Sanpaz-2008-11-22T21:33:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z"></span>Strength of materials is a single topic. It happens that its concepts are used in structural analysis and for material testing. A single article is better. <a href="/wiki/User:Sanpaz" title="User:Sanpaz">Sanpaz</a> (<a href="/wiki/User_talk:Sanpaz" title="User talk:Sanpaz">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Sanpaz-2008-11-22T21:33:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z" class="ext-discussiontools-init-timestamplink">21:33, 22 November 2008 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Sanpaz-2008-11-22T21:33:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Sanpaz-2008-11-22T21:33:00.000Z-Wolfkeeper-2008-11-22T19:53:00.000Z"></span></dd></dl> <dl><dd><dl><dd>I agree that they're related, but they're not the same thing. Articles are about <i>a</i> topic.- (<a href="/wiki/User:Wolfkeeper" title="User:Wolfkeeper">User</a>) <b>Wolfkeeper</b> (<a href="/wiki/User_talk:Wolfkeeper" title="User talk:Wolfkeeper">Talk</a>) 22:10, 22/11/ 2008 (UTC)</dd></dl></dd></dl> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="strength_of_materials._Basic_assumptions" data-mw-thread-id="h-strength_of_materials._Basic_assumptions-2009-09-08T20:11:00.000Z"><span data-mw-comment-start="" id="h-strength_of_materials._Basic_assumptions-2009-09-08T20:11:00.000Z"></span>strength of materials. Basic assumptions<span data-mw-comment-end="h-strength_of_materials._Basic_assumptions-2009-09-08T20:11:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=9" title="Edit section: strength of materials. Basic assumptions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-77.245.12.217-2009-09-08T20:11:00.000Z-strength_of_materials._Basic_assumptions"></span>Subject to strength of materials. Basic assumptions I. Introduction. All modern buildings, machinery, appliances and equipment are manufactured or built on pre-designed projects. The project is drawing or series of drawings and technical drawings, which sets out all dimensions of the elements of structures and details of the machinery necessary for their preparation, their materials and also describes the technology. Thus, even in the design process must be perfectly defined dimensions of the elements and details of equipment and machinery. Obviously these rates depend on a number of conditions and circumstances, including by properties of the material and the alleged external influences. Each structure must have the reliability in operation and be economical. Reliability of the structure shall be provided if it store strength, stiffness and stability with guaranteed durability. Its economy is largely determined by the cost of material from the application of less scarce construction materials the possibility of drawing up details of the most advanced technologies. Reliability and economy are contradictory requirements. Strength - this is the ability of the structure to resist destruction in its effect on the external forces (loads). Stiffness - this element is the ability to resist deformations. Sustainability - a property of the system to retain their primary balance in the external impacts. Durability of the structure consists of its ability to store the necessary properties for use in the course of earlier certain period of time. In strength of materials is widely applied methods theoretical mechanics and mathematical analysis, using data from sections of physics, studying the properties of different materials, and other Science. Strength of materials is a theoretical-experimental science, because it widely used experimental data and theoretical studies. First notes about the strength found in the notebooks of Leonardo da Vinci. Genesis of the science of strength of materials refers to the XVII century and is connected with the work of the famous scholar of that time Galileo Galilei. Significant contribution to this development was made by eminent scientists Hook, Bernoulli, Saint-Vena, Koshi, lame, Euler and others. In Russia at the end of the XIX and beginning of XX century, important research on resistance Materials scientists have made Russian Zhuravskiy I. D., U. S. Yasinskiy, I. D. Boubnova, S. P. Timoshenko and others. II. The main task of the strength of materials. The main task of the strength of materials is to development of engineering methods for designing and calculating typical elements of structures for strength, stiffness and stability durability, given simultaneously backing the economy. III. Real objects and computational scheme. In strength of materials study the question of reliability real object begins with the choice of computational scheme. The real object released from non-essential features, a computational scheme. The choice of computational scheme begins with the adoption of the basic assumptions. IV. Main hypotheses. Strength of Materials course aims at creating a practically acceptable simple ways to calculate the typical elements of structures. Need a practical decision of each task bring to the numerical result is the reason for engaging in many cases to simplifying assumptions. These are assumptions that are justified after compare the numerical results with those of experiments. 1. Hypotheses about the material. a) the assumption of continuity of the material. This is an environment occupying a constant volume. b) the assumption of homogeneity of the material. Under the uniformity means uniformity of properties in all points of the body. It is experimentally proved that the material has heterogeneous, discrete structure. However, when the volume of element volume surpasses many of the structural units composing it ( atoms, molecules), real bodies can be regarded as homogeneous. c) izotropnost hypothesis. Continuous medium is considered isotropic, ie have the same properties in all directions. This is steel. Are anisotropic materials whose properties in different directions are different (eg, wood). d) deformiruemost hypothesis. If the bodies in the theoretical mechanics is regarded as absolutely stiff, then in the resistance of the material bodies have the ability be deformed, ie to modify their initial size and shape under action of external loads. Deformations of the material in each section shall be adopted in relation to their small sizes and can not account their influence on the mutual disposition of the cargo (ie calculations are carried out in undistorted scheme). e) the hypothesis of elasticity. Elasticity is the property of their bodies to recover original shape and size after removal of the load. 2. Hypotheses about body shape. a) the main task of the strength of materials to be decided units of beam type. This is a body whose length is significantly greater than transverse dimensions. b) the hypothesis of plane sections (the Bernoulli hypothesis). Any sectional plane perpendicular to the axis of the beam before deformation remains plane and perpendicular to the axis of the deformed the beam at this location. F F 3. Hypotheses about the forces applied. a) distributed over a small area loads are considered concentrated. F b) the principle of Saint-Vena. If you replace a system forces applied in area? 1 of the deformable body, with another system forces equivalent to and applied it in another area? 2, it will affect the voltages and deformations in the area? that contains? 1 and? 2 and whose size is around the greater of the two areas. c) the hypothesis of local equilibrium. If one body is stationary, then each of its part will also be at rest. d) the hypothesis of a static action forces. All applications forces increase gradually from zero to its final value. e) the hypothesis of initial and final state of equilibrium. Let the beam under the action of the load is in equilibrium. Because displacements are small, it remains in equilibrium. F ? f) the principle of superposition. The final value of the quantity (voltage, deformation, displacement, rotation) as a result of a set of external loads can be obtained as the algebraic sum of the values of these variables, which correspond to different loads that population. F ? F 2 1 F ? 1 ? F 2 1 2 ? =? +? 1 2 g) the principle of hardening. Before loading the body has a certain shape and size. F F 2 1 F 3 F 4 After etching, there is another body shape and size. F F 2 1 F 3 F 4 Perfectly rigid body - consists of particles, distances between not change. Deformable solid - spaces between the particles are change. It is perfectly elastic to a certain degree of loading. <span style="font-size: smaller;" class="autosigned">—Preceding <a href="/wiki/Wikipedia:Signatures" title="Wikipedia:Signatures">unsigned</a> comment added by <a href="/wiki/Special:Contributions/77.245.12.217" title="Special:Contributions/77.245.12.217">77.245.12.217</a> (<a href="/w/index.php?title=User_talk:77.245.12.217&action=edit&redlink=1" class="new" title="User talk:77.245.12.217 (page does not exist)">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-77.245.12.217-2009-09-08T20:11:00.000Z-strength_of_materials._Basic_assumptions" class="ext-discussiontools-init-timestamplink">20:11, 8 September 2009 (UTC)</a></span><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-77.245.12.217-2009-09-08T20:11:00.000Z-strength_of_materials._Basic_assumptions"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-77.245.12.217-2009-09-08T20:11:00.000Z-strength_of_materials._Basic_assumptions"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="First_paragraph" data-mw-thread-id="h-First_paragraph-2010-12-13T10:18:00.000Z"><span data-mw-comment-start="" id="h-First_paragraph-2010-12-13T10:18:00.000Z"></span>First paragraph<span data-mw-comment-end="h-First_paragraph-2010-12-13T10:18:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=10" title="Edit section: First paragraph"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-Fbsck-2010-12-13T10:18:00.000Z-First_paragraph"></span>I tidied up the first paragraph to improve the grammar and make it a bit more accessible to a general audience. It still needs a bit more work in this regard. <a href="/w/index.php?title=User:Fbsck&action=edit&redlink=1" class="new" title="User:Fbsck (page does not exist)">Fbsck</a> (<a href="/wiki/User_talk:Fbsck" title="User talk:Fbsck">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Fbsck-2010-12-13T10:18:00.000Z-First_paragraph" class="ext-discussiontools-init-timestamplink">10:18, 13 December 2010 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Fbsck-2010-12-13T10:18:00.000Z-First_paragraph"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Fbsck-2010-12-13T10:18:00.000Z-First_paragraph"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Cut_and_paste_of_material_into_the_article" data-mw-thread-id="h-Cut_and_paste_of_material_into_the_article-2011-01-23T20:34:00.000Z"><span data-mw-comment-start="" id="h-Cut_and_paste_of_material_into_the_article-2011-01-23T20:34:00.000Z"></span>Cut and paste of material into the article<span data-mw-comment-end="h-Cut_and_paste_of_material_into_the_article-2011-01-23T20:34:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=11" title="Edit section: Cut and paste of material into the article"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-Nuujinn-2011-01-23T20:34:00.000Z-Cut_and_paste_of_material_into_the_article"></span>It is not appropriate to cut and paste material from other sources without clarifying that the material is in the public domain or released under an appropriate license. Material also requires proper attribution. <span style="text-shadow: 0.2em 0.2em 0.1em #DDDDDD">--<a href="/wiki/User:Nuujinn" title="User:Nuujinn">Nuujinn</a> (<a href="/wiki/User_talk:Nuujinn" title="User talk:Nuujinn">talk</a>)</span> <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Nuujinn-2011-01-23T20:34:00.000Z-Cut_and_paste_of_material_into_the_article" class="ext-discussiontools-init-timestamplink">20:34, 23 January 2011 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Nuujinn-2011-01-23T20:34:00.000Z-Cut_and_paste_of_material_into_the_article"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Nuujinn-2011-01-23T20:34:00.000Z-Cut_and_paste_of_material_into_the_article"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Things_to_improve" data-mw-thread-id="h-Things_to_improve-2012-03-01T03:19:00.000Z"><span data-mw-comment-start="" id="h-Things_to_improve-2012-03-01T03:19:00.000Z"></span>Things to improve<span data-mw-comment-end="h-Things_to_improve-2012-03-01T03:19:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=12" title="Edit section: Things to improve"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-RJFJR-2012-03-01T03:19:00.000Z-Things_to_improve"></span>Currently the article is long on definitions and short on prose. <a href="/wiki/User:RJFJR" title="User:RJFJR">RJFJR</a> (<a href="/wiki/User_talk:RJFJR" title="User talk:RJFJR">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-RJFJR-2012-03-01T03:19:00.000Z-Things_to_improve" class="ext-discussiontools-init-timestamplink">03:19, 1 March 2012 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-RJFJR-2012-03-01T03:19:00.000Z-Things_to_improve"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-RJFJR-2012-03-01T03:19:00.000Z-Things_to_improve"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Screwy_sentence" data-mw-thread-id="h-Screwy_sentence-2012-06-27T18:25:00.000Z"><span data-mw-comment-start="" id="h-Screwy_sentence-2012-06-27T18:25:00.000Z"></span>Screwy sentence<span data-mw-comment-end="h-Screwy_sentence-2012-06-27T18:25:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=13" title="Edit section: Screwy sentence"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-PaulTanenbaum-2012-06-27T18:25:00.000Z-Screwy_sentence"></span>The article says this </p> <dl><dd>"The strength of any material relies on three different types of analytical method: strength, stiffness and stability,"</dd></dl> <p>which has two problems. First, it asserts that a material's strength relies on an analytical method. That is a <a href="/wiki/Category_error" class="mw-redirect" title="Category error">category error</a>: material strength is a property of the physical world, whereas analytical methods are mental concepts created by and for human reasoning. The second problem with the quoted passage is that it asserts that a material's strength relies (in part) on analysis of strength. That is a <a href="/wiki/Mereology" title="Mereology">mereological</a> error reminiscent of <a href="/wiki/Russell%27s_paradox" title="Russell's paradox">Russell's paradox</a> and the corresponding flaw at the heart of <a href="/wiki/Naive_set_theory" title="Naive set theory">naive set theory</a>; at the very least, it's a <a href="/wiki/Circular_definition" title="Circular definition">circular definition</a>. </p><p>I'd fix the offending passage myself, but I ain't no <a href="/wiki/Mechanical_engineer" class="mw-redirect" title="Mechanical engineer">mechanical engineer</a>. So I must resort to recruiting some competent third party to kindly set things aright.<a href="/wiki/User:PaulTanenbaum" title="User:PaulTanenbaum">PaulTanenbaum</a> (<a href="/wiki/User_talk:PaulTanenbaum" title="User talk:PaulTanenbaum">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-PaulTanenbaum-2012-06-27T18:25:00.000Z-Screwy_sentence" class="ext-discussiontools-init-timestamplink">18:25, 27 June 2012 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-PaulTanenbaum-2012-06-27T18:25:00.000Z-Screwy_sentence"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-PaulTanenbaum-2012-06-27T18:25:00.000Z-Screwy_sentence"></span> </p> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Strength_of_Materials_vs_Solid_Mechanics?" data-mw-thread-id="h-Strength_of_Materials_vs_Solid_Mechanics?-2014-04-11T05:27:00.000Z"><span id="Strength_of_Materials_vs_Solid_Mechanics.3F"></span><span data-mw-comment-start="" id="h-Strength_of_Materials_vs_Solid_Mechanics?-2014-04-11T05:27:00.000Z"></span>Strength of Materials vs Solid Mechanics?<span data-mw-comment-end="h-Strength_of_Materials_vs_Solid_Mechanics?-2014-04-11T05:27:00.000Z"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Talk:Strength_of_materials&action=edit&section=14" title="Edit section: Strength of Materials vs Solid Mechanics?"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span><div class="ext-discussiontools-init-section-bar"><div class="ext-discussiontools-init-section-metadata"></div><div class="ext-discussiontools-init-section-actions"></div></div></div> <p><span data-mw-comment-start="" id="c-Yetanotherwriter-2014-04-11T05:27:00.000Z-Strength_of_Materials_vs_Solid_Mechanics?"></span>I've always been under the impression that Strength of Materials and <a href="/wiki/Solid_Mechanics" class="mw-redirect" title="Solid Mechanics">Solid Mechanics</a> were names that could be used interchangeably. However, Wikipedia has distinct articles on these topics, which do not talk of each other at all, apart from mentioning each other in their respective "See also" sections. </p><p>Could someone please add an authentic statement which clarifies the relationship (if any) between these two topics, in at least one of these articles? <a href="/wiki/User:Yetanotherwriter" title="User:Yetanotherwriter">Yetanotherwriter</a> (<a href="/wiki/User_talk:Yetanotherwriter" title="User talk:Yetanotherwriter">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Yetanotherwriter-2014-04-11T05:27:00.000Z-Strength_of_Materials_vs_Solid_Mechanics?" class="ext-discussiontools-init-timestamplink">05:27, 11 April 2014 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Yetanotherwriter-2014-04-11T05:27:00.000Z-Strength_of_Materials_vs_Solid_Mechanics?"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Yetanotherwriter-2014-04-11T05:27:00.000Z-Strength_of_Materials_vs_Solid_Mechanics?"></span> </p> <dl><dd><span data-mw-comment-start="" id="c-Jokester251-2016-02-23T23:38:00.000Z-Yetanotherwriter-2014-04-11T05:27:00.000Z"></span>I also thought they were different names for the same field (along with Mechanics of Materials and other terms). I propose that Strength of Materials and <a href="/wiki/Solid_Mechanics" class="mw-redirect" title="Solid Mechanics">Solid Mechanics</a> be merged unless someone can clarify the difference between the subjects (preferably a civil engineering expert using cited sources). The ambiguity is frustrating. <a href="/w/index.php?title=User:Jokester251&action=edit&redlink=1" class="new" title="User:Jokester251 (page does not exist)">Jokester251</a> (<a href="/wiki/User_talk:Jokester251" title="User talk:Jokester251">talk</a>) <a href="https://en.wikipedia.org/wiki/Talk:Strength_of_materials#c-Jokester251-2016-02-23T23:38:00.000Z-Yetanotherwriter-2014-04-11T05:27:00.000Z" class="ext-discussiontools-init-timestamplink">23:38, 23 February 2016 (UTC)</a><span class="ext-discussiontools-init-replylink-buttons" data-mw-thread-id="c-Jokester251-2016-02-23T23:38:00.000Z-Yetanotherwriter-2014-04-11T05:27:00.000Z"><span class="ext-discussiontools-init-replylink-bracket">[</span><a class="ext-discussiontools-init-replylink-reply" role="button" tabindex="0" href="">reply</a><span class="ext-discussiontools-init-replylink-bracket">]</span></span><span data-mw-comment-end="c-Jokester251-2016-02-23T23:38:00.000Z-Yetanotherwriter-2014-04-11T05:27:00.000Z"></span></dd></dl>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Talk:Strength_of_materials&oldid=1194082230">https://en.wikipedia.org/w/index.php?title=Talk:Strength_of_materials&oldid=1194082230</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:C-Class_level-4_vital_articles" title="Category:C-Class level-4 vital articles">C-Class level-4 vital articles</a></li><li><a href="/wiki/Category:Wikipedia_level-4_vital_articles_in_Physical_sciences" title="Category:Wikipedia level-4 vital articles in Physical sciences">Wikipedia level-4 vital articles in Physical sciences</a></li><li><a href="/wiki/Category:C-Class_vital_articles_in_Physical_sciences" title="Category:C-Class vital articles in Physical sciences">C-Class vital articles in Physical sciences</a></li><li><a href="/wiki/Category:C-Class_physics_articles" title="Category:C-Class physics articles">C-Class physics articles</a></li><li><a href="/wiki/Category:Low-importance_physics_articles" title="Category:Low-importance physics articles">Low-importance physics articles</a></li><li><a href="/wiki/Category:C-Class_physics_articles_of_Low-importance" title="Category:C-Class physics articles of Low-importance">C-Class physics articles of Low-importance</a></li><li><a href="/wiki/Category:C-Class_CE_articles" title="Category:C-Class CE articles">C-Class CE articles</a></li><li><a href="/wiki/Category:Unknown-importance_CE_articles" title="Category:Unknown-importance CE articles">Unknown-importance CE articles</a></li><li><a href="/wiki/Category:WikiProject_Civil_engineering_articles" title="Category:WikiProject Civil engineering articles">WikiProject Civil engineering articles</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden category: <ul><li><a href="/wiki/Category:All_Wikipedia_vital_articles" title="Category:All Wikipedia vital articles">All Wikipedia vital articles</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 7 January 2024, at 03:18<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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