Equivalent-energy indentation method to predict the tensile properties of light alloys

The EIM (equivalent-energy indentation method) based on equivalent energy principle is proposed to determine the stress-strain relations of materials via spherical indentation. For various materials in power hardening law, plenty of finite element simulations were conducted to verify this novel meth...

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Main Authors: Hui Chen, Li-xun Cai, Chen Bao
Format: Article
Language:English
Published: Elsevier 2019-01-01
Series:Materials & Design
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127518308645
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author Hui Chen
Li-xun Cai
Chen Bao
author_facet Hui Chen
Li-xun Cai
Chen Bao
author_sort Hui Chen
collection DOAJ
description The EIM (equivalent-energy indentation method) based on equivalent energy principle is proposed to determine the stress-strain relations of materials via spherical indentation. For various materials in power hardening law, plenty of finite element simulations were conducted to verify this novel method. The numerical verification shows the forward-predicted load-depth curves and the reverse-predicted stress-strain curves by EIM agree with the results from FEA (finite element analysis). For different light alloys, the stress-strain curves predicted by the method are consistent with the tensile results of the alloys. Additionally, a comparison between EIM and the existing ABI (automatic ball indentation) is conducted as well. Keywords: Spherical indentation, Equivalent-energy indentation method, Finite element analysis, Stress-strain relations
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spelling doaj.art-feb5e806fcae41e9b6e70abd2bff675f2022-12-21T18:47:09ZengElsevierMaterials & Design0264-12752019-01-01162322330Equivalent-energy indentation method to predict the tensile properties of light alloysHui Chen0Li-xun Cai1Chen Bao2Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaCorresponding author.; Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaApplied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaThe EIM (equivalent-energy indentation method) based on equivalent energy principle is proposed to determine the stress-strain relations of materials via spherical indentation. For various materials in power hardening law, plenty of finite element simulations were conducted to verify this novel method. The numerical verification shows the forward-predicted load-depth curves and the reverse-predicted stress-strain curves by EIM agree with the results from FEA (finite element analysis). For different light alloys, the stress-strain curves predicted by the method are consistent with the tensile results of the alloys. Additionally, a comparison between EIM and the existing ABI (automatic ball indentation) is conducted as well. Keywords: Spherical indentation, Equivalent-energy indentation method, Finite element analysis, Stress-strain relationshttp://www.sciencedirect.com/science/article/pii/S0264127518308645
spellingShingle Hui Chen
Li-xun Cai
Chen Bao
Equivalent-energy indentation method to predict the tensile properties of light alloys
Materials & Design
title Equivalent-energy indentation method to predict the tensile properties of light alloys
title_full Equivalent-energy indentation method to predict the tensile properties of light alloys
title_fullStr Equivalent-energy indentation method to predict the tensile properties of light alloys
title_full_unstemmed Equivalent-energy indentation method to predict the tensile properties of light alloys
title_short Equivalent-energy indentation method to predict the tensile properties of light alloys
title_sort equivalent energy indentation method to predict the tensile properties of light alloys
url http://www.sciencedirect.com/science/article/pii/S0264127518308645
work_keys_str_mv AT huichen equivalentenergyindentationmethodtopredictthetensilepropertiesoflightalloys
AT lixuncai equivalentenergyindentationmethodtopredictthetensilepropertiesoflightalloys
AT chenbao equivalentenergyindentationmethodtopredictthetensilepropertiesoflightalloys