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Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests

In this paper, a novel inverse computation approach is proposed to extract the anisotropic plasticity parameters of metal materials by using inverse analysis and dual indentation tests. Based on dimensional analysis and extensive finite element (FE) simulations, four independent dimensionless functi...

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Detalles Bibliográficos
Autores principales: Wang, Mingzhi, Wu, Jianjun, Fan, He, Zhang, Zengkun, Wu, Hongfei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793510/
https://www.ncbi.nlm.nih.gov/pubmed/29271944
http://dx.doi.org/10.3390/ma11010012
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author Wang, Mingzhi
Wu, Jianjun
Fan, He
Zhang, Zengkun
Wu, Hongfei
author_facet Wang, Mingzhi
Wu, Jianjun
Fan, He
Zhang, Zengkun
Wu, Hongfei
author_sort Wang, Mingzhi
collection PubMed
description In this paper, a novel inverse computation approach is proposed to extract the anisotropic plasticity parameters of metal materials by using inverse analysis and dual indentation tests. Based on dimensional analysis and extensive finite element (FE) simulations, four independent dimensionless functions are derived to correlate the anisotropic plasticity parameters with material responses in dual indentation tests. Besides, an inverse calculation algorithm is suggested, to estimate the unknown anisotropic parameters of the indented specimens using the information collected from indentation. The proposed numerical approach is applied on a series of engineering materials. Results show that the inverse analysis is ill-posed when only the load-displacement (P-h) curves in dual indentation tests were used. This problem can be effectively alleviated by introducing the pile-up effect as the additional information. The new method is proved to be very effective and reliable.
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spelling pubmed-57935102018-02-07 Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests Wang, Mingzhi Wu, Jianjun Fan, He Zhang, Zengkun Wu, Hongfei Materials (Basel) Article In this paper, a novel inverse computation approach is proposed to extract the anisotropic plasticity parameters of metal materials by using inverse analysis and dual indentation tests. Based on dimensional analysis and extensive finite element (FE) simulations, four independent dimensionless functions are derived to correlate the anisotropic plasticity parameters with material responses in dual indentation tests. Besides, an inverse calculation algorithm is suggested, to estimate the unknown anisotropic parameters of the indented specimens using the information collected from indentation. The proposed numerical approach is applied on a series of engineering materials. Results show that the inverse analysis is ill-posed when only the load-displacement (P-h) curves in dual indentation tests were used. This problem can be effectively alleviated by introducing the pile-up effect as the additional information. The new method is proved to be very effective and reliable. MDPI 2017-12-22 /pmc/articles/PMC5793510/ /pubmed/29271944 http://dx.doi.org/10.3390/ma11010012 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Mingzhi
Wu, Jianjun
Fan, He
Zhang, Zengkun
Wu, Hongfei
Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests
title Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests
title_full Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests
title_fullStr Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests
title_full_unstemmed Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests
title_short Extraction of the Anisotropic Plasticity of Metal Materials by Using Inverse Analysis and Dual Indentation Tests
title_sort extraction of the anisotropic plasticity of metal materials by using inverse analysis and dual indentation tests
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793510/
https://www.ncbi.nlm.nih.gov/pubmed/29271944
http://dx.doi.org/10.3390/ma11010012
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