Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques
This work is focused on the determination of elastic-plastic material properties from indentation loading-unloading curves using optimisation techniques and experimental data from instrumented indentation tests. Three different numerical optimisation methods (namely, FE analysis, dimensional mathema...
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| Format: | Article |
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Elsevier
2018
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| Online Access: | https://eprints.nottingham.ac.uk/52762/ |
| _version_ | 1848798803350519808 |
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| author | Kang, Ji Jun Becker, Adib A. Wen, Wu Sun, Wei |
| author_facet | Kang, Ji Jun Becker, Adib A. Wen, Wu Sun, Wei |
| author_sort | Kang, Ji Jun |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This work is focused on the determination of elastic-plastic material properties from indentation loading-unloading curves using optimisation techniques and experimental data from instrumented indentation tests. Three different numerical optimisation methods (namely, FE analysis, dimensional mathematical functions and simplified mathematical equations approaches) have been used to determine three material properties; Young's modulus, yield stress and work-hardening exponent. The predictions of the material properties from the three approaches have been validated against the values obtained from uniaxial tensile tests and compared to the experimental loading-unloading curves. In general, the elastic-plastic material properties predicted from these three proposed optimisation methods estimate the Young's modulus to within 6% and the yield stress and work-hardening exponent to within 12%, compared to the values obtained from the uniaxial tensile tests. |
| first_indexed | 2025-11-14T20:25:34Z |
| format | Article |
| id | nottingham-52762 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:25:34Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-527622020-05-04T19:50:29Z https://eprints.nottingham.ac.uk/52762/ Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques Kang, Ji Jun Becker, Adib A. Wen, Wu Sun, Wei This work is focused on the determination of elastic-plastic material properties from indentation loading-unloading curves using optimisation techniques and experimental data from instrumented indentation tests. Three different numerical optimisation methods (namely, FE analysis, dimensional mathematical functions and simplified mathematical equations approaches) have been used to determine three material properties; Young's modulus, yield stress and work-hardening exponent. The predictions of the material properties from the three approaches have been validated against the values obtained from uniaxial tensile tests and compared to the experimental loading-unloading curves. In general, the elastic-plastic material properties predicted from these three proposed optimisation methods estimate the Young's modulus to within 6% and the yield stress and work-hardening exponent to within 12%, compared to the values obtained from the uniaxial tensile tests. Elsevier 2018-08 Article PeerReviewed Kang, Ji Jun, Becker, Adib A., Wen, Wu and Sun, Wei (2018) Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques. International Journal of Mechanical Sciences, 144 . pp. 102-109. ISSN 0020-7403 Indentation; Finite element analysis; Optimization; Elastic-plastic; Material properties https://www.sciencedirect.com/science/article/pii/S0020740317323378 doi:10.1016/j.ijmecsci.2018.05.043 doi:10.1016/j.ijmecsci.2018.05.043 |
| spellingShingle | Indentation; Finite element analysis; Optimization; Elastic-plastic; Material properties Kang, Ji Jun Becker, Adib A. Wen, Wu Sun, Wei Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques |
| title | Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques |
| title_full | Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques |
| title_fullStr | Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques |
| title_full_unstemmed | Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques |
| title_short | Extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques |
| title_sort | extracting elastic-plastic properties from experimental loading-unloading indentation curves using different optimization techniques |
| topic | Indentation; Finite element analysis; Optimization; Elastic-plastic; Material properties |
| url | https://eprints.nottingham.ac.uk/52762/ https://eprints.nottingham.ac.uk/52762/ https://eprints.nottingham.ac.uk/52762/ |