Abstract
Using the finite element analysis, the deep indentation of strain-hardening elastoplastic materials by a rigid, spherical indenter has been studied. The simulation results clearly show that the ratio of the indentation load to the maximum indentation depth increases with the increase of the strain-hardening index and reaches a maximum value at the maximum indentation depth being about 10% of the indenter radius. The power law relation between the indentation load and the indentation depth for shallow indentation becomes invalid for deep indentation. However, the ratio of the plastic energy to the total mechanical work is a linear function of the ratio of the residual indentation depth to the maximum indentation depth, independent of the strain-hardening index and the indentation depth.
| Original language | English |
|---|---|
| Pages (from-to) | 6331-6336 |
| Number of pages | 6 |
| Journal | Journal of Materials Science |
| Volume | 43 |
| Issue number | 18 |
| DOIs | |
| State | Published - Sep 2008 |
Bibliographical note
Funding Information:Acknowledgement This work is supported by National Science Foundation through the grant CMS-0508989 and Kentucky Science and Engineering Foundation.
Funding
Acknowledgement This work is supported by National Science Foundation through the grant CMS-0508989 and Kentucky Science and Engineering Foundation.
| Funders | Funder number |
|---|---|
| Kentucky Science and Engineering Foundation | |
| U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China | CMS-0508989 |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Science (miscellaneous)
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Polymers and Plastics