| 有机玻璃边缘连接结构疲劳寿命可靠性分析 |
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| 引用本文： | 高宗战,何新党,姜志峰,岳珠峰.有机玻璃边缘连接结构疲劳寿命可靠性分析[J].材料工程,2010(5). |
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| 作者姓名： | 高宗战 何新党 姜志峰 岳珠峰 |
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| 作者单位： | 西北工业大学,工程力学系,西安,710072;江西洪都航空工业集团有限责任公司,南昌,330024 |
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| 基金项目： | 国家自然科学基金，博士点基金资助项目，高等学校学科创新引智计划项目 |
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| 摘 要： | 针对有机玻璃边缘连接结构弯曲疲劳实验结果,提出了结构低周疲劳寿命模型,对有机玻璃边缘连接结构可靠性进行分析.考虑材料属性、疲劳幅值载荷的随机性,分别采用Monte-Carlo法和四阶矩法,借助有限元分析软件Marc对结构进行了可靠性分析,得到低周疲劳载荷作用下结构疲劳寿命的可靠度,比较两种计算结果,发现四阶矩法计算结果与Monte-Carlo法计算偏差很小,适用于有机玻璃边缘连接结构疲劳可靠性分析;同时分析了基本变量均值与标准差影响结构可靠性的灵敏度,得到载荷为影响结构疲劳寿命可靠性的主要因素.
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| 关 键 词： | 有机玻璃边缘连接 疲劳寿命 可靠性 Monte-Carlo法 四阶矩法 |
Reliability Analysis of Fatigue Life for Polymethyl Methacrylate with Edge Joint Structure |
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| GAO Zong-zhan,HE Xin-dang,JIANG Zhi-feng,YUE Zhu-feng.Reliability Analysis of Fatigue Life for Polymethyl Methacrylate with Edge Joint Structure[J].Journal of Materials Engineering,2010(5). |
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| Authors: | GAO Zong-zhan HE Xin-dang JIANG Zhi-feng YUE Zhu-feng |
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| Affiliation: | GAO Zong-zhan1,HE Xin-dang1,JIANG Zhi-feng2,YUE Zhu-feng1(1 Department of Engineering Mechanics,Northwestern Polytechnical University,Xi'an 710072,China,2 Jiangxi Hongdu Aviation Industrial Shareholding Co.,Ltd.,Nanchang 330024,China) |
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| Abstract: | A low cycle fatigue life model was put forward based on bending experiment results of polymethyl methacrylate edge joint structures.Using this model,the reliability of the polymethyl methacrylate edge joint structure was analyzed by software MSC MARC.The material properties and fatigue load amplitudes were considered as random factors.The Monte-Carlo method and the forth moment method were utilized to get the fatigue life reliability of the polymethyl methacrylate edge joint structure under low cycle fatigu... |
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| Keywords: | edge joint structure of polymethyl methacrylate fatigue life reliability Monte-Carlo method forth moment method |
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