Defect and Diffusion Forum Vol. 402

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<i class="inline-icon arrow-right-black no-focus-icon on-hover-arrow-left-red"></i> </div> </div> </a> </div> </div> <div class="right-content col-md-8 col-sm-7 col-xs-12"> <div class="bread-crumbs hidden-xs"> <a class="bread-crumbs-first" href="/">Home</a><i class="inline-icon arrow-breadcrumbs"></i><a class="bread-crumbs-first" href="/DDF">Defect and Diffusion Forum</a><i class="inline-icon arrow-breadcrumbs"></i><span class="bread-crumbs-second">Defect and Diffusion Forum Vol. 402</span></div> <div class="page-name-block underline-begin"> <h1 class="page-name-block-text">Defect and Diffusion Forum Vol. 402</h1> </div> <div class="clearfix title-details"> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>DOI:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="https://doi.org/10.4028/www.scientific.net/DDF.402">https://doi.org/10.4028/www.scientific.net/DDF.402</a></p> </div> </div> </div> </div> <div id="titleMarcXmlLink" style="display: none" class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>Export:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/DDF.402/marc.xml">MARCXML</a></p> </div> </div> </div> </div> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>ToC:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/DDF.402_toc.pdf">Table of Contents</a></p> </div> </div> </div> </div> </div> <div class="volume-tabs"> </div> <div class=""> <div class="volume-papers-page"> <div class="block-search-pagination clearfix"> <div class="block-search-volume"> <input id="paper-search" type="search" placeholder="Search" maxlength="65"> </div> <div class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/DDF.402/2">2</a></li><li class="PagedList-skipToNext"><a href="/DDF.402/2" rel="next">></a></li></ul></div> </div> <div class="block-volume-title normal-text-gray"> <p> Paper Title <span>Page</span> </p> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.-3">Preface</a> </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.1">Role of Size of Rubber Particles on Failure Mode and Impact Resistance Characteristics of PC/ABS Blends and their ABS Constituents with a Higher Rubber Content</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Muhammad Nizar Machmud, Masaki Omiya, Hirotsugu Inoue, Kikuo Kishimoto </div> </div> <div id="abstractTextBlock553470" class="volume-info volume-info-text volume-info-description"> Abstract: This study presents an experimental study on failure modes and resistances of polycarbonate (PC)/Acrylonitrile Butadiene Styrene (ABS) blends and their ABS constituents under a drop weight impact test (DWIT). Failure modes and impact resistances such as impact strength and impact toughness of such blends are generally influenced by molecular weight of the PC, rubber content and size of rubber particle in ABS system. A preliminary study on ABS materials using a DWIT showed that size of rubber particle not only determined their failure modes but also influencing their resistance characteristics. However, in a previous study performed using the similar DWIT on PC/ABS blends with a 10 wt% rubber content, it was revealed that size of rubber particle did not significantly influence their resistances. Their failure modes were even macroscopically very difficult to be distinguished. This study, hence, is aimed to further explore role of the size of rubber particle on failure mode and impact resistance characteristics of the PC/ABS blends and their ABS constituents with a higher rubber content. The impact test results have revealed that with a 20 wt% rubber content, size of rubber particle only influenced the resistances of the PC/ABS blends. It did not significantly contribute to affect failure mode of the PC/ABS blends. Whilst, it significantly influenced failure modes and resistances of the ABS. The DWIT results also re-confirmed that blending a brittle ABS into PC led to produce a tougher PC/ABS blend. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553470', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 1 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.7">Properties of High Strength Concrete with Calcined Diatomaceous Earth as Cement Replacement under Compression</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Muttaqin Hasan, Aris Muyasir, Taufiq Saidi, Husaini Husaini, Raudha Azzahra </div> </div> <div id="abstractTextBlock553484" class="volume-info volume-info-text volume-info-description"> Abstract: In this research, calcined diatomaceous earth from Aceh Besar, Indonesia was used as cement replacement in producing high strength concrete. Four concrete mixtures in which the percentage of cement replacement of 0%, 5%, 10% and 15% by weight were studied. Four cylinder-specimens with 100 mm diameter and 200 mm high were prepared for each mixture. The compression load was applied on the specimens at the age of 28 days until the specimens failed. The mixture without calcined diatomaceous earth was more workable than that with diatomaceous earth. The compressive strength of concrete with diatomaceous earth in this study was almost the same for all mixture. However, those compressive strength was lower than the compressive strength of concrete without calcined diatomaceous earth for about 14.6%. Modulus of elasticity of high strength concrete decreased with increasing of cement replacement percentage. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553484', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 7 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.14">Investigation of Meniscus Effect on Microbond Test of <i>Typha</i> Fiber/Epoxy Matrix</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Andri Afrizal, Ikramullah Ikramullah, Syarizal Fonna, Syifaul Huzni </div> </div> <div id="abstractTextBlock553505" class="volume-info volume-info-text volume-info-description"> Abstract: The microbond test was one of the methods to examine the interfacial shear strength (IFSS) value of fiber and polymer matrix. The meniscus angle that formed at both ends of the matrix is difficult to control while manufacturing the specimen for the microbond test. Therefore, the effect of meniscus angle must be evaluated. In this paper, we evaluated the impact of variations of the meniscus angle against the maximum von-mises stress and the IFSS value of the <i>Typha</i> fiber epoxy matrix by finite element method. The geometry of the microbond test specimen was modeled with 0.25 mm fiber radius, 2 mm fiber length, 1.75 mm embedded length of the matrix, and varied the meniscus angles with 22掳, 30掳, 45掳, 60掳, 75掳, and 90掳. The mesh type quad-dominated CAX4R is used on fiber and matrix, while quad COHAX4 is applied to the cohesive element between fiber and matrix. The constantly applied displacement was adjusted to the upper end of the fiber at 0.6 mm. The simulation results showed that the difference in maximum stress obtained in each model. Furthermore, that is not given much difference in IFSS value. It can be concluded that the meniscus angle affects the maximum von-mises stress but not too much-affected IFSS value of the fiber and epoxy matrix. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553505', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 14 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.20">Study on Fracture Failures of the Super Heater Water Pipe Boiler</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Husaini Husaini, Nurdin Ali, Teuku Edisah Putra, Faleri Armia, Akhyar Akhyar </div> </div> <div id="abstractTextBlock553533" class="volume-info volume-info-text volume-info-description"> Abstract: The purpose of this study was to analyse the failure of the super heater pipe of the Heat Recovery Steam Boiler Generator (HRSG), which had broken. Investigations are carried out in several stages. First of all, the microstructure of the pipe was observed using an Optic Olympus GX71 Microscope and a Scanning Electron Microscope (SEM) was used to observe the fracture surface to find the initial crack. Thereafter, chemical composition testing, to determine the type of material used in the super heater pipe. The presence of deformation by creep was due to overheating seen on the super heater pipes. Moreover, It was due to operating at elevated temperatures and pressures with long operating times. This condition caused the thickness of the pipe to thin so that it would break due to crack propagation which penetrated the wall of the pipe until breaking as the material was no longer able to withstand the steam pressure inside the pipe. Obviously that this condition indicates that the crack propagation occurred until final failure. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553533', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 20 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.27">Thermal Spray Application on the Dissimilar Metals Weld between Aluminum and Steel</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Zuhri Nurisna, Agus Supriyanto, Nurul Muhayat, Triyono Triyono </div> </div> <div id="abstractTextBlock553576" class="volume-info volume-info-text volume-info-description"> Abstract: Physical and mechanical properties differences between aluminum and steel, especially melting points, make them unable to be welded easily. Moreover, a hard and brittle intermetallic compound (IMC) is always formed at the interface of aluminum and steel. The thermal spray method was proposed to make interlayer for improving fusion and avoiding hard and brittle intermetallic compounds (IMC) at the interface of joined materials. Based on solubility into both steel and aluminum, nickel was chosen as interlayer material. The aim of this research was to investigate the effect of nickel layer thickness and welding variables on the properties of dissimilar metals diffusion welded between steel and aluminum. Nickel was layered into the steel surface using the thermal spray method before the joining process. The nickel interlayer thickness was in the range from 0.2 mm to 1.0 mm. Steel and aluminum were then welded by using the diffusion weld method. The constant pressure of 5 Mpa and constant holding time of 180 s were performed in diffusion welding, while the temperature was varied, i.e. 500掳C, 525掳C, and 550掳C. The thickness of the formed IMC layer increased along with the increase of the diffusion welding temperature. The highest tensile shear strength was obtained by the joint with the welding temperature of 525掳C. The nickel interlayer successfully avoided the formation of Fe-Al IMC and formed a stronger and more ductile diffusion area, and thus increased the strength of the steel and aluminum joint. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553576', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 27 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.33">Fatigue Life Assessments of the SAE 5160 Carbon Steel Subjected to Uphill and Downhill Roads Strains</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Teuku Edisah Putra, Husaini Husaini, Hary Prakasa, Iskandar Hasanuddin, Muhammad Rizal, Muhammad Nizar Machmud </div> </div> <div id="abstractTextBlock553601" class="volume-info volume-info-text volume-info-description"> Abstract: This study examines the fatigue life of the SAE 5160 carbon steel as the material for an automotive coil spring subjected to road strain. The strain signals were acquired by attaching a strain gauge on the component, driving a car up- and down-hill roads. The results of the fatigue life assessment based on the strain-life approach show that the downhill road resulted in a lifespan of 15,000 cycles to failure, which was 53% lower than the uphill road. This value was a result of braking when the vehicle is moving downhill, causing stress to the component leading to shorter fatigue life. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553601', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 33 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.39">Fatigue Life Assessments of the AISI 1513 Carbon Steel Subjected to Road Surface Strains</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Teuku Edisah Putra, Husaini Husaini, Muhammad Ikbal, Iskandar Hasanuddin, Muhammad Rizal, Muhammad Nizar Machmud </div> </div> <div id="abstractTextBlock553603" class="volume-info volume-info-text volume-info-description"> Abstract: The purpose of this work was to predict the fatigue life of the AISI 1513 carbon steel due to the strains measured at a vehicle's lower arm. The strain signals were acquired using a strain gauge installed at the lower arm, and then the car was driven at various road surfaces. On the smooth road surface, the car was driven at a speed of > 70 km/h and on the rough road surface, at a speed of < 20 km/h. The results show that when the vehicle was driven on the rough road, the lower arm received higher stress, which provided a shorter fatigue life. The contour of the road surfaces provided a vertical load, directly working the lower arm and reducing the load vertically. The fatigue life for the rough road surface was 13,050 cycles to failure. This value was 91,195% lower than the fatigue life on the smooth road surface. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553603', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 39 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.45">Fatigue Life Assessments of the AISI 1513 Carbon Steel of a Vehicle Lower Arm Subjected to Clockwise and Counter-Clockwise Road Strains</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Husaini Husaini, Teuku Edisah Putra, Muhammad Reza Rizky, Akmal Rauzatul, Iskandar Hasanuddin, Muhammad Rizal, Masri Ali </div> </div> <div id="abstractTextBlock553607" class="volume-info volume-info-text volume-info-description"> Abstract: This study aims to predict the fatigue life of the AISI 1513 carbon steel as the material for the vehicle lower arm subjected to road strains. Measurement of the strain signals was done by attaching a strain gauge at the left lower arm and driving the vehicle on clockwise and counter-clockwise roads at a speed of 30 km/h. According to the results based on the strain-life approach, the clockwise road gave the fatigue life of 2,600,000 cycles to failure, which was 1,862 % lower than the counter-clockwise road. It indicated that when the vehicle turned to the right, the lower arm on the left side subjected to a higher strain, resulting in a shorter fatigue life. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553607', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 45 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/DDF.402.50">Flexural and Splitting Tensile Strength of High Strength Concrete with Diatomite Micro Particles as Mineral Additive</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Muttaqin Hasan, Aulia Desri Datok Riski, Taufiq Saidi, Husaini Husaini, Putroe Nadhilah Rahman </div> </div> <div id="abstractTextBlock553620" class="volume-info volume-info-text volume-info-description"> Abstract: This paper presents the flexural and splitting tensile strength of high strength concrete (HSC) with diatomite micro particles (DMP) as a mineral additive. In order to have micro particles, the diatomite from Aceh Besar District was ground and sieved with sieve size of 250 mm. The particles were then calcined at the temperature of 600 掳C for 5 hours. Four mixtures were designed with different DMP to binder ratio (DMP/b). The ratio was 0%, 5%, 10% and 15%, and the water to binder ratio was 0.3. Four beam specimens with a size of 10 cm 脳 10 cm 脳 40 cm and four cylinder-specimens with 10 cm diameter and 20 cm high were prepared for each mixture. Flexural and splitting tensile tests were conducted based on ASTM C78 and ASTM C496/496M. The maximum flexural strength was reached at DMP/b of 5% while the maximum splitting tensile strength was reached at DMP/b of 0%. </div> <div> <a data-readmore="{ block: '#abstractTextBlock553620', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 50 </div> </div> <div class="block-bottom-pagination"> <div class="pager-info"> <p>Showing 1 to 10 of 20 Paper Titles</p> </div> <div class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/DDF.402/2">2</a></li><li class="PagedList-skipToNext"><a href="/DDF.402/2" rel="next">></a></li></ul></div> </div> </div> </div> </div> </div> </div> </div> <div class="social-icon-popup"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-popup-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-popup-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-popup-icon social-icon"></i></a> </div> </div> <div class="sc-footer"> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="footer-menu col-md-12 col-sm-12 col-xs-12"> <ul class="list-inline menu-font"> <li><a href="/ForLibraries">For Libraries</a></li> <li><a href="/ForPublication/Paper">For Publication</a></li> <li><a href="/insights" target="_blank">Insights</a></li> <li><a href="/DocuCenter">Downloads</a></li> <li><a href="/Home/AboutUs">About Us</a></li> <li><a href="/PolicyAndEthics/PublishingPolicies">Policy & Ethics</a></li> <li><a href="/Home/Contacts">Contact Us</a></li> <li><a href="/Home/Imprint">Imprint</a></li> <li><a href="/Home/PrivacyPolicy">Privacy Policy</a></li> <li><a href="/Home/Sitemap">Sitemap</a></li> <li><a href="/Conferences">All Conferences</a></li> <li><a href="/special-issues">All Special Issues</a></li> <li><a href="/news/all">All News</a></li> <li><a href="/read-and-publish-agreements">Read & Publish Agreements</a></li> </ul> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-footer-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-footer-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-footer-icon social-icon"></i></a> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12 footer-copyright"> <p> © 2024 Trans Tech Publications Ltd. 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Defect and Diffusion Forum Vol. 402 | Scientific.Net