| 椭圆孔边角裂纹应力强度因子的权函数求解方法 |
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| 引用本文： | 谢伟,黄其青.椭圆孔边角裂纹应力强度因子的权函数求解方法[J].航空学报,2007,28(2):328-331. |
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| 作者姓名： | 谢伟 黄其青 |
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| 作者单位： | 西北工业大学,航空学院,陕西,西安,710072 |
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| 摘 要： | 飞机结构中一些用作检查的开口常常设计为椭圆孔，椭圆孔边三维裂纹应力强度因子的计算是该类结构损伤容限分析的关键技术。应用组合法思想构造了椭圆孔边裂纹的权函数，给出片条合成法求解含椭圆孔边三维角裂纹应力强度因子的求解方法，计算了椭圆孔边角裂纹受远方拉伸情况下的应力强度因子，研究了椭圆孔曲率半径对应力强度因子的影响，给出可供工程参考的结果和结论。
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| 关 键 词： | 组合法 片条合成法 角裂纹 应力强度因子 权函数 椭圆孔 |
| 文章编号： | 1000-6893(2007)02-0328-04 |
| 修稿时间： | 2005年11月17 |
Weight Function Method for Stress Intensity Factor of Corner Crack at Elliptic Holes Under Remote Tension |
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| XIE Wei,HUANG Qi-qing.Weight Function Method for Stress Intensity Factor of Corner Crack at Elliptic Holes Under Remote Tension[J].Acta Aeronautica et Astronautica Sinica,2007,28(2):328-331. |
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| Authors: | XIE Wei HUANG Qi-qing |
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| Institution: | School of Aeronautics,Northwestern Polytechnical University |
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| Abstract: | The hatches of the inspection are usually designed with elliptic holes in airplane structures,so the computation of the stress intensity factor of three dimensional cracks at elliptic holes is pivotal for damage tolerance analysis of these structures.In this paper the weight function of crack at elliptic holes is given by applied compounding method.Stress intensity factor′s formula of corner crack,applied the slice synthesis method,is gained.Stress intensity factor of corner crack at elliptic holes under remote tension is computed. |
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| Keywords: | compounding method slice synthesis method corner crack stress intensity factor weight function method elliptical hole |
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