| 边界元法计算厚板表面裂纹问题的应力强度因子 |
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| 引用本文： | 刘云忠.边界元法计算厚板表面裂纹问题的应力强度因子[J].固体火箭技术,1996,19(3):64-70. |
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| 作者姓名： | 刘云忠 |
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| 作者单位： | 航天工业总公司四院四十三所 |
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| 摘 要： | 建立了一种能反映裂纹尖端应力、应变奇异性的三维等参奇性边界元，应用边界元分析方法求得了具有半椭圆形和半圆形表面裂纹厚板的应力强度因子。结果表明，采用这种计算方法得到了满意的计算效果。
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| 关 键 词： | 边界元 厚板 裂纹 应力强度因子 |
Calculation for Stress intensity Factorof Thick Plate with Cracks Using Boundary EI ement Method |
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| Liu Yunzhong.Calculation for Stress intensity Factorof Thick Plate with Cracks Using Boundary EI ement Method[J].Journal of Solid Rocket Technology,1996,19(3):64-70. |
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| Authors: | Liu Yunzhong |
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| Abstract: | The 3-D isoparametric singular boundary elements considering stress and strain singularity properties at the crack tip are formulated. The stress intensity factors of thick plate with semielliptical and half circular surface crack are presented. The calculated result is satisfactory |
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| Keywords: | Boundary element method Thick plate Surface cracking Stress-intensity factor |
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