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| An Analysis of a Crack in Functionally Gradient Coatings by Inhomogeneous Finite Element | |
Zhao XS(赵希淑); Zhang SY(张双寅) ; Wu YL(吴永礼)
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| Source Publication | Engineering Mechanics
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| 2002 | |
| Volume | 19Issue:4Pages:118-122 |
| ISSN | 1000-4750 |
| Other Abstract | 本文采用非均匀等参有限元的方法研究了薄膜梯度涂层/均匀基材中的界面裂纹问题,并与双材料界面裂纹情况进行了对比计算。研究表明：在均匀基材上采用梯度涂层，与双材料相比可以有效地降低裂尖场应力强度因子；同时还分析了涂层厚度与梯度参数对界面应力强度因子的影响。结果表明：当薄膜厚度大于或等于裂纹长度时，应力强度因子(KI、KII)对其尺度的变化显得不敏感；对梯度参数的影响而言，当材料性能曲线的幂指数m 大于1 时，裂尖场的应力强度因子KII 相对KI 很小且基本不随m 变化，因此裂尖场与均匀材料情况类似；当m 小于1 时，应力强度因子KII 随m 减小而急剧增大，裂尖场由KI 及KII 控制，断裂趋于混合型。 |
| Subject Area | 力学 |
| Indexed By | 其他 |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/15742 |
| Collection | 力学所知识产出(1956-2008) |
| Recommended Citation GB/T 7714 | Zhao XS,Zhang SY,Wu YL. An Analysis of a Crack in Functionally Gradient Coatings by Inhomogeneous Finite Element[J]. Engineering Mechanics,2002,19,4,:118-122. |
| APA | 赵希淑,张双寅,&吴永礼.(2002).An Analysis of a Crack in Functionally Gradient Coatings by Inhomogeneous Finite Element.Engineering Mechanics,19(4),118-122. |
| MLA | 赵希淑,et al."An Analysis of a Crack in Functionally Gradient Coatings by Inhomogeneous Finite Element".Engineering Mechanics 19.4(2002):118-122. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 梯度涂层材料中裂纹问题的非均匀元分析.p（145KB） | 开放获取 | -- | View Download | |||
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