Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters
The load-displacement curve in indentation is widely used to extract elastoplastic properties of materials. It is believed that such a measurement is non-unique and a full stress-strain curve cannot be obtained with a sharp indenter or even plural and spherical indenters. By introducing a ratio of t...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier Ltd
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/2943 |
| _version_ | 1848744091951562752 |
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| author | Ma, Z. Zhou, Y. Long, S. Zhong, X. Lu, Chunsheng |
| author_facet | Ma, Z. Zhou, Y. Long, S. Zhong, X. Lu, Chunsheng |
| author_sort | Ma, Z. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The load-displacement curve in indentation is widely used to extract elastoplastic properties of materials. It is believed that such a measurement is non-unique and a full stress-strain curve cannot be obtained with a sharp indenter or even plural and spherical indenters. By introducing a ratio of the additional residual area to the area of a profile indenter, we proposed a new set of dimensionless functions. Based on these functions and finite element simulations, analytical expressions were derived between indentation data and elastoplastic properties. It is shown that this method can effectively distinguish highly elastic and plastic solids (Cheng and Cheng, 1999) and mystical materials (Chen et al., 2007), which provides a useful guideline for properly using the indentation technique to measure elastoplastic properties of materials with conical and pyramidal indenters. |
| first_indexed | 2025-11-14T05:55:58Z |
| format | Journal Article |
| id | curtin-20.500.11937-2943 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:55:58Z |
| publishDate | 2012 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-29432019-02-19T05:34:47Z Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters Ma, Z. Zhou, Y. Long, S. Zhong, X. Lu, Chunsheng Uniqueness Finite element simulation Indentation Mechanical properties The load-displacement curve in indentation is widely used to extract elastoplastic properties of materials. It is believed that such a measurement is non-unique and a full stress-strain curve cannot be obtained with a sharp indenter or even plural and spherical indenters. By introducing a ratio of the additional residual area to the area of a profile indenter, we proposed a new set of dimensionless functions. Based on these functions and finite element simulations, analytical expressions were derived between indentation data and elastoplastic properties. It is shown that this method can effectively distinguish highly elastic and plastic solids (Cheng and Cheng, 1999) and mystical materials (Chen et al., 2007), which provides a useful guideline for properly using the indentation technique to measure elastoplastic properties of materials with conical and pyramidal indenters. 2012 Journal Article http://hdl.handle.net/20.500.11937/2943 10.1016/j.mechmat.2012.07.006 Elsevier Ltd fulltext |
| spellingShingle | Uniqueness Finite element simulation Indentation Mechanical properties Ma, Z. Zhou, Y. Long, S. Zhong, X. Lu, Chunsheng Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters |
| title | Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters |
| title_full | Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters |
| title_fullStr | Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters |
| title_full_unstemmed | Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters |
| title_short | Characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters |
| title_sort | characterization of stress-strain relationships of elastoplastic materials: an improved method with conical and pyramidal indenters |
| topic | Uniqueness Finite element simulation Indentation Mechanical properties |
| url | http://hdl.handle.net/20.500.11937/2943 |