Anisotropic Deformation Behavior of Al2024T351 Aluminum Alloy

The objective of this work was to investigate the effects of material anisotropy on the yielding and hardening behavior of 2024T351 aluminum alloy using isotropic and anisotropic yield criteria. Anisotropy may be induced in a material during the manufacturing through processes like rolling or forgin...

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Main Author: R Khan
Format: Article
Language:English
Published: Sultan Qaboos University 2013-06-01
Series:The Journal of Engineering Research
Subjects:
Online Access:https://journals.squ.edu.om/index.php/tjer/article/view/125
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author R Khan
author_facet R Khan
author_sort R Khan
collection DOAJ
description The objective of this work was to investigate the effects of material anisotropy on the yielding and hardening behavior of 2024T351 aluminum alloy using isotropic and anisotropic yield criteria. Anisotropy may be induced in a material during the manufacturing through processes like rolling or forging. This induced anisotropy gives rise to the concept of orientation-dependent material properties such as yield strength, ductility, strain hardening, fracture strength, or fatigue resistance. Inclusion of the effects of anisotropy is essential in correctly predicting the deformation behavior of a material. In this study, uniaxial tensile tests were first performed in all three rolling directions, L , T  and S , for smooth bar specimens made from hot rolled plate of Al2024 alloy. The experimental results showed that the L - and T -directions yielded higher yield strengths and a greater percentage of elongation before fracture than the S -direction. Subsequently, finite element analysis of tensile specimens was performed using isotropic (von Mises) and anisotropic (Hill) yield criteria to predict the onset of yielding and hardening behaviors during the course of deformation. Hill's criterion perfectly fitted with the test data in the S -direction, but slightly underestimated the yield strength in L -direction. The results indicated that the Hill yield criterion is the most suitable one to predict the onset of yielding and hardening behaviors for 2024T351 aluminum alloy in all directions.
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spelling doaj.art-962ce51ffdaa4280b5ba8e4dbf96160a2022-12-21T22:41:16ZengSultan Qaboos UniversityThe Journal of Engineering Research1726-60091726-67422013-06-01101808710.24200/tjer.vol10iss1pp80-87125Anisotropic Deformation Behavior of Al2024T351 Aluminum AlloyR Khan0Mechanical Engineering Department, NED University of Engineering and Technology, Karachi, PakistanThe objective of this work was to investigate the effects of material anisotropy on the yielding and hardening behavior of 2024T351 aluminum alloy using isotropic and anisotropic yield criteria. Anisotropy may be induced in a material during the manufacturing through processes like rolling or forging. This induced anisotropy gives rise to the concept of orientation-dependent material properties such as yield strength, ductility, strain hardening, fracture strength, or fatigue resistance. Inclusion of the effects of anisotropy is essential in correctly predicting the deformation behavior of a material. In this study, uniaxial tensile tests were first performed in all three rolling directions, L , T  and S , for smooth bar specimens made from hot rolled plate of Al2024 alloy. The experimental results showed that the L - and T -directions yielded higher yield strengths and a greater percentage of elongation before fracture than the S -direction. Subsequently, finite element analysis of tensile specimens was performed using isotropic (von Mises) and anisotropic (Hill) yield criteria to predict the onset of yielding and hardening behaviors during the course of deformation. Hill's criterion perfectly fitted with the test data in the S -direction, but slightly underestimated the yield strength in L -direction. The results indicated that the Hill yield criterion is the most suitable one to predict the onset of yielding and hardening behaviors for 2024T351 aluminum alloy in all directions.https://journals.squ.edu.om/index.php/tjer/article/view/125deformation behaviour, anisotropy, downhole expandable tubular, finite element analysis
spellingShingle R Khan
Anisotropic Deformation Behavior of Al2024T351 Aluminum Alloy
The Journal of Engineering Research
deformation behaviour, anisotropy, downhole expandable tubular, finite element analysis
title Anisotropic Deformation Behavior of Al2024T351 Aluminum Alloy
title_full Anisotropic Deformation Behavior of Al2024T351 Aluminum Alloy
title_fullStr Anisotropic Deformation Behavior of Al2024T351 Aluminum Alloy
title_full_unstemmed Anisotropic Deformation Behavior of Al2024T351 Aluminum Alloy
title_short Anisotropic Deformation Behavior of Al2024T351 Aluminum Alloy
title_sort anisotropic deformation behavior of al2024t351 aluminum alloy
topic deformation behaviour, anisotropy, downhole expandable tubular, finite element analysis
url https://journals.squ.edu.om/index.php/tjer/article/view/125
work_keys_str_mv AT rkhan anisotropicdeformationbehaviorofal2024t351aluminumalloy