Knowledge Management System of Institue of Mechanics, CAS
| Analysis of micro-indentation problem of a soft film on a hard substrate | |
Yi DK; Wang ZQ(王自强)
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| Source Publication | Advances In Heterogeneous Material Mechanics 2008 |
| 2008 | |
| Pages | 342-347 |
| Conference Name | International Conference on Heterogeneous Material Mechanics (ICHMM) |
| Conference Date | JUN 03-08, 2008 |
| Conference Place | Huangshan, PEOPLES R CHINA |
| Abstract | Two stages have been observed in micro-indentation experiment of a soft film on a hard substrate. In the first stage, the hardness of the thin film decreases with increasing depth of indentation when indentation is shallow; and in the second stage, the hardness of the film increases with increasing depth of indentation when the indenter tip approaches the hard substrate. In this paper, the new strain gradient theory is used to analyze the micro-indentation behavior of a soft film on a hard substrate. Meanwhile, the classic plastic theory is also applied to investigating the problem. Comparing two theoretical results with the experiment data, one can find that the strain gradient theory can describe the experiment data at both the shallow and deep indentation depths quite well, while the classic theory can't explain the experiment results. |
| Keyword | Strain Gradient Theory Size Effect Soft Film Hard Substrate Plasticity |
| WOS ID | WOS:000257167700084 |
| Indexed By | CPCI-S ; EI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25406 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Yi DK |
| Recommended Citation GB/T 7714 | Yi DK,Wang ZQ. Analysis of micro-indentation problem of a soft film on a hard substrate[C]Advances In Heterogeneous Material Mechanics 2008,2008:342-347. |
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