| 基于Erdogan基本解边界元法计算应力强度因子 |
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| 引用本文： | 苏成,郑淳.基于Erdogan基本解边界元法计算应力强度因子[J].力学学报,2007,39(1):93-99. |
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| 作者姓名： | 苏成 郑淳 |
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| 作者单位： | 广州华南理工大学土木工程系，510640 广州华南理工大学土木工程系，510640 |
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| 摘 要： | 引入含裂纹问题基本解(Erdogan基本解)，提出了基于Erdogan基本解的样条虚边界
元法，并阐述了该法在实施过程中的特点与具体做法. 采用该方法详细分析了若干
典型裂纹问题，全面考察了方法的计算精度和收敛情况，以及在求解复杂裂纹问题方面
的能力. 结果显示，该方法具有精度高、收敛快、计算能力强等优点，是裂纹问题分析中
一种具有竞争力的通用计算方法.
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| 关 键 词： | 断裂力学 应力强度因子 Erdogan基本解 边界元法 样条函数 |
| 文章编号： | 0459-1879（2007）01-0093-07 |
| 收稿时间： | 2006-01-25 |
| 修稿时间： | 2006-07-18 |
CALCULATION OF STRESS INTENSITY FACTORS BY BOUNDARY ELEMENT METHOD BASED ON ERDOGAN FUNDAMENTAL SOLUTIONS |
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| Su Cheng,Zheng Chun.CALCULATION OF STRESS INTENSITY FACTORS BY BOUNDARY ELEMENT METHOD BASED ON ERDOGAN FUNDAMENTAL SOLUTIONS[J].chinese journal of theoretical and applied mechanics,2007,39(1):93-99. |
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| Authors: | Su Cheng Zheng Chun |
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| Institution: | Department of Civil Engineering, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | The Erdogan fundamental solutions for infinite cracked plates are introduced in this paper. The spline fictitious boundary element method is then proposed and formulated for analysis of mode I and mixed mode (mode I and II) problems based on the above fundamental solutions. The proposed method is further applied to analyze certain crack problems, in which the computation accuracy, convergence rate and the versatility of the method are demonstrated in details. |
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| Keywords: | fracture mechanics stress intensity factors Erdogan fundamental solutions boundary element method spline function |
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