| 一种表面裂纹可靠性分析方法 |
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| 引用本文： | 吕震宙,岳珠峰.一种表面裂纹可靠性分析方法[J].机械强度,1996,18(2):30-32. |
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| 作者姓名： | 吕震宙 岳珠峰 |
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| 作者单位： | 西北工业大学飞机工程系 |
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| 摘 要： | 建立受剪应力表面裂纹塑性失稳扩展的可靠性分析模型。采用三维弹塑性模型对其综合变量Ｊ积分进行了计算，分析在不同的无量纲裂纹尺寸和外载应力情况下，裂纹失稳扩展的失效概率分布规律，为工程检测和维修提供指导。
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| 关 键 词： | 表面 裂纹 可靠性 弹塑性失效 断裂力学 |
A RELIABILITY ANALYSIS METHOD FOR SURFACE CRACK |
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| Lu Zhenzhou,Yue Zhufeng,Feng Yuansheng.A RELIABILITY ANALYSIS METHOD FOR SURFACE CRACK[J].Journal of Mechanical Strength,1996,18(2):30-32. |
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| Authors: | Lu Zhenzhou Yue Zhufeng Feng Yuansheng |
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| Abstract: | A reliability analysis method for plastic unstable fracture of surface crack subjected to shearingstress is presented, and 3-D elastic-plastic model is used to compute J-integral,a synthetic random variable. Thedistribution laws of the failure probability subjected to different normalized cracking sizes and different normalizedload are studied,which can guide the detection and maintenance for engineers. |
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| Keywords: | surface crack reliability elastic-plastic failure |
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