| Multiple-scale interface fracture analysis for thin film/substrate system under temperature mismatch | |
Li MZ(李美之) ; Ma HS(马寒松); Liang LH(梁立红); Wei YG(魏悦广); Li MZ(李美之)
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| Source Publication | IUTAM Symposium on Surface Effects in the Mechanics of Nanomaterials and Heterostructures - Proceedings of the IUTAM Symposium held in Beijing, China, 8-12 August, 2010 |
| 2013 | |
| Pages | 137-146 |
| Conference Name | IUTAM Symposium on Surface Effects in the Mechanics of Nanomaterials and Heterostructures |
| Conference Date | AUG 08-12, 2010 |
| Conference Place | Beijing, China |
| Abstract | Based on the Wei-Xu model (Int J Plast, 21:2123, 2005), a multiple-scale interface fracture analysis for the thin film/substrate system under temperature mismatch is carried out. The thin film delamination process at the macroscopic scale is analyzed by using the strain gradient plasticity theory. The plastic shielding effects on the interface crack propagation are investigated for both the elastic film/plastic substrate and the plastic film/elastic substrate systems. On the other hand, by presenting a bridging model (equivalent interface K’-field) and by using the Rice-Thomson discrete dislocation model, the microscopic fracture process of the thin film/substrate system is analyzed, and the dislocation shielding effects on interface cracking at the microscale are investigated. The results show that the variation of interface fracture energy has an inverse size effect with respect to the dislocation-free zone size. |
| Keyword | Multiple-scale Fracture Thin Film Temperature Mismatch Fracture Energy Discrete Dislocation |
| ISBN | 978-94-007-4910-8 |
| URL | 查看原文 |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/48308 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Li MZ(李美之) |
| Recommended Citation GB/T 7714 | Li MZ,Ma HS,Liang LH,et al. Multiple-scale interface fracture analysis for thin film/substrate system under temperature mismatch[C]IUTAM Symposium on Surface Effects in the Mechanics of Nanomaterials and Heterostructures - Proceedings of the IUTAM Symposium held in Beijing, China, 8-12 August, 2010,2013:137-146. |
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| IMCAS-Conf2013-010.p（333KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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