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阐述了利用有限元分析结果进行结构静强度可靠性分析的一种方法。利用工程上较为成熟的一次二阶矩法计算结构单元可靠度,用数值积分法求主要失效模式间的二阶共失效概率,然后采用0Ditlevse的二阶窄边界法计算结构体系的失效概率,最终计算结果与实际相吻合
A method to analyze the reliability of structural static strength by means of finite element analysis is described. The more mature first-order second moment method is used to calculate the structural unit reliability. The second-order total failure probability is calculated by numerical integral method. Then the second-order narrow boundary method of 0Ditlevse is used to calculate the failure probability of the structural system. Finally, The calculation results are in accordance with the actual ones