| 基于随机有限元法的疲劳断裂可靠性分析 |
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| 引用本文： | 孟广伟,李锋,赵云亮. 基于随机有限元法的疲劳断裂可靠性分析[J]. 吉林大学学报(工学版), 2006, 0(Z1) |
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| 作者姓名： | 孟广伟 李锋 赵云亮 |
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| 作者单位： | 吉林大学机械科学与工程学院 长春130022 |
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| 基金项目： | 吉林大学“985工程”资助项目吉林省科技厅基金资助项目(20030528) |
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| 摘 要： | 将影响结构疲劳断裂的不确定因素视为随机变量,用随机有限元和可靠性设计理论, 从概率论和数理统计的角度对含裂纹的平面结构进行了可靠性分析,并对疲劳裂纹进行了 Monte-Carlo模拟,最后将用随机有限元得到的分析结果与Monte-Carlo模拟结果进行了比较, 比较结果证明了此方法的适用性。
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| 关 键 词： | 工程力学 疲劳 断裂 可靠性 随机有限元 应力强度因子 |
Reliability analysis of fatigue and fracture based on stochastic finite element method |
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| Meng Guang-wei,Li Feng,Zhao Yun-liang. Reliability analysis of fatigue and fracture based on stochastic finite element method[J]. Journal of Jilin University:Eng and Technol Ed, 2006, 0(Z1) |
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| Authors: | Meng Guang-wei Li Feng Zhao Yun-liang |
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| Abstract: | The uncertainties affecting the fatigue and fracture of structure were regarded as random variables. Combining stochastic finite element method with reliability analysis reliability analysis for a cracked plate from the aspects of probability theory and mathematical statistics was presented. And Monte-Carlo simulations were made for fatigue cracks. From the comparisons of the outcomes of stochastic finite element method with Monte-Carlo simulation results, this method is proved to be applicable. |
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| Keywords: | engineering mechanics fatigue fracture reliability stochastic finite element stress intensity factors |
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