Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach
Conventional indentation tests do not provide an accurate estimation of viscoplastic material properties. In this work, a combined finite element analysis and optimization approach is developed for the determination of elastic–plastic and creep material properties using only a single indentation loa...
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| Format: | Article |
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SAGE
2015
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| Online Access: | https://eprints.nottingham.ac.uk/35510/ |
| _version_ | 1848795095559569408 |
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| author | Kang, JiJun Becker, Adib A. Sun, Wei |
| author_facet | Kang, JiJun Becker, Adib A. Sun, Wei |
| author_sort | Kang, JiJun |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Conventional indentation tests do not provide an accurate estimation of viscoplastic material properties. In this work, a combined finite element analysis and optimization approach is developed for the determination of elastic–plastic and creep material properties using only a single indentation loading–unloading curve based on a two-layer viscoplasticity model. Utilizing the indentation loading–unloading curve obtained from a finite element-simulated experiment with a spherical and a conical indenter, a set of six key material properties (Young’s modulus, yield stress, work hardening exponent and three creep parameters) can be determined. Non-linear optimization algorithms are used with different sets of initial material properties, leading to good agreements with the numerically simulated target loading–unloading curves. |
| first_indexed | 2025-11-14T19:26:38Z |
| format | Article |
| id | nottingham-35510 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:26:38Z |
| publishDate | 2015 |
| publisher | SAGE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-355102020-05-04T17:11:25Z https://eprints.nottingham.ac.uk/35510/ Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach Kang, JiJun Becker, Adib A. Sun, Wei Conventional indentation tests do not provide an accurate estimation of viscoplastic material properties. In this work, a combined finite element analysis and optimization approach is developed for the determination of elastic–plastic and creep material properties using only a single indentation loading–unloading curve based on a two-layer viscoplasticity model. Utilizing the indentation loading–unloading curve obtained from a finite element-simulated experiment with a spherical and a conical indenter, a set of six key material properties (Young’s modulus, yield stress, work hardening exponent and three creep parameters) can be determined. Non-linear optimization algorithms are used with different sets of initial material properties, leading to good agreements with the numerically simulated target loading–unloading curves. SAGE 2015-06-04 Article PeerReviewed Kang, JiJun, Becker, Adib A. and Sun, Wei (2015) Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 229 (3). pp. 175-188. ISSN 2041-3076 Indentation Finite element analysis Optimization Two-layer viscoplasticity model http://pil.sagepub.com/content/229/3/175 doi:10.1177/1464420713504534 doi:10.1177/1464420713504534 |
| spellingShingle | Indentation Finite element analysis Optimization Two-layer viscoplasticity model Kang, JiJun Becker, Adib A. Sun, Wei Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach |
| title | Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach |
| title_full | Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach |
| title_fullStr | Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach |
| title_full_unstemmed | Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach |
| title_short | Determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach |
| title_sort | determination of elastic and viscoplastic material properties obtained from indentation tests using a combined finite element analysis and optimization approach |
| topic | Indentation Finite element analysis Optimization Two-layer viscoplasticity model |
| url | https://eprints.nottingham.ac.uk/35510/ https://eprints.nottingham.ac.uk/35510/ https://eprints.nottingham.ac.uk/35510/ |