| 功能梯度材料中裂纹问题的边界元分析 |
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| 引用本文： | 陈英儒,肖洪天,汪小敏,高英.功能梯度材料中裂纹问题的边界元分析[J].山东科技大学学报(自然科学版),2004,23(4):33-35. |
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| 作者姓名： | 陈英儒 肖洪天 汪小敏 高英 |
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| 作者单位： | 1. 山东科技大学,资源与环境工程学院,山东,泰安,271019
2. 山东省建设厅,山东,济南,250031 |
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| 摘 要： | 采用基于边界元方法的广义Kelvin解对功能梯度材料中的裂纹问题进行了研究，主要在对裂纹的评价中采用了多域法和八节点面力奇异边界单元，并采用层离散化方法用来近似功能梯度材料，计算出了不同条件下功能梯度材料中币形裂纹的应力强度因子。
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| 关 键 词： | 功能梯度材料 边界单元方法 广义Kelvin解 应力强度因子 币形裂纹 |
| 文章编号： | 1672-3767(2004)04-0033-03 |
| 修稿时间： | 2003年12月2日 |
Boundary Element Analysis of Crack Problems in Functionally Graded Materials |
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| CHEN Ying-ru,XIAO Hong-tian,WANG Xiao-min,GAO Ying.Boundary Element Analysis of Crack Problems in Functionally Graded Materials[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2004,23(4):33-35. |
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| Authors: | CHEN Ying-ru XIAO Hong-tian WANG Xiao-min GAO Ying |
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| Institution: | CHEN Ying-ru~1,XIAO Hong-tian~1,WANG Xiao-min~1,GAO Ying~2 |
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| Abstract: | A so-called generalized Kelvin solution based on boundary element method is used to check out the crack problem of functionally graded material in this present study,the multi-region method and the eight-node traction singular boundary elements are used for the crack evaluation. The layer discretization technique is utilized to approximate the functionally graded material and calculate the stress intensity factor of the penny-shaped crack of functionally graded material under different conditions. |
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| Keywords: | functionally graded material boundary element method generalized Kelvin solution stress intensity factor penny-shaped crack |
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