| 考虑偶应力影响的有限大板单边裂纹计算 |
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| 引用本文： | 郝明辉,王锡平,王敏,周慎杰.考虑偶应力影响的有限大板单边裂纹计算[J].山东大学学报(工学版),2008,38(2):92-95. |
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| 作者姓名： | 郝明辉 王锡平 王敏 周慎杰 |
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| 作者单位： | 1. 山东大学土建与水利学院,山东,济南,250061
2. 山东大学,机械工程学院,山东,济南,250061 |
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| 摘 要： | 裂纹尖端存在很大的应变梯度，应变梯度效应对裂纹尖端附近的应力场和微尺度下的断裂行为产生显著影响.本文采用基于偶应力理论的无网格迦辽金法计算有限大板单边裂纹尖端的应力场和应力强度因子，分析了偶应力对裂纹尖端的影响.计算结果表明基于偶应力理论的无网格法的有效性和可行性.
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| 关 键 词： | 偶应力理论 应力强度因子 无网格迦辽金法 |
| 文章编号： | 1672-3961(2008)02-0092-04 |
| 收稿时间： | 2006-11-02 |
| 修稿时间： | 2006年11月2日 |
The solution of a one-edge crack of a finite plate with the influence of couple stress in a uniform tension field |
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| HAO Ming-hui,WANG Xi-ping,WANG Min,ZHOU Shen-jie.The solution of a one-edge crack of a finite plate with the influence of couple stress in a uniform tension field[J].Journal of Shandong University of Technology,2008,38(2):92-95. |
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| Authors: | HAO Ming-hui WANG Xi-ping WANG Min ZHOU Shen-jie |
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| Affiliation: | 1. School of Civil Engineering, Shandong University, Jinan 250061, China；2. School of Mechanical Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | There is stress concentration in the crack tip. It has apparent effect on the stress field of the crack tip and the fracture behavior of the material.The stress concentration factor of a finite plate in a uniform tension field with the element-free method was calculated based on the couple stress theory, and the influence of couple stress on the stress field in crack tip was analyzed. The result shows the feasibility and efficiency of this method. |
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| Keywords: | the couple stress theory stress concentration factor element-free method |
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