| 静载下含平面缺陷的压力管道的失效率 |
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| 引用本文： | 左尚志,钟群鹏,武淮生,张峥.静载下含平面缺陷的压力管道的失效率[J].航空学报,2000,21(Z1):150-152. |
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| 作者姓名： | 左尚志 钟群鹏 武淮生 张峥 |
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| 作者单位： | 北京航空航天大学材料科学与工程系 北京 100083 |
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| 摘 要： | 参照 SAPV-95规范,用第 2水平法对静载下含平面缺陷的压力管道进行了可靠性分析,得出了功能函数。提出了计算失效率的快速收敛的迭代算法,并分析了失效率与广义强度和广义应力的均值及变异系数的关系。得出了用失效率可对静载下含平面缺陷的压力管道的安全状况进行评估和预测的结论
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| 关 键 词： | 压力管道 平面缺陷 第2水平法 失效率 |
| 收稿时间： | 1999-06-03 |
| 修稿时间： | 1999-06-03 |
PROBABILITY OF FAILURE TO PRESSURE PIPE WITH PLANAR DISFIGUREMENTS UNDER STEADY LOAD |
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| ZUO Shang-zhi,ZHONG Qun-peng,WU Huai-sheng,ZHANG Zheng.PROBABILITY OF FAILURE TO PRESSURE PIPE WITH PLANAR DISFIGUREMENTS UNDER STEADY LOAD[J].Acta Aeronautica et Astronautica Sinica,2000,21(Z1):150-152. |
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| Authors: | ZUO Shang-zhi ZHONG Qun-peng WU Huai-sheng ZHANG Zheng |
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| Institution: | Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China) |
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| Abstract: | Based on SAPV 95, by means of level 2 method, the safety function and the method to get the probability of failure which can be used to weigh and forecast the safety state of pressure pipes with planar disfigurements under steady load are proposed. What's more, the relation between the probability and the average values and variation coefficients of generalized stress and generalized strength is analyzed. |
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| Keywords: | pr essur e pipe planar disfigur ement level-method probabilit y of failur e |
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