In this paper stochastic finite element method and SFEM-based reliability evaluation are developed for linear, nonlinear, static and dynamic problems.
本文针对工程结构中的随机因素，开展了线性与非线性，静力和动力问题的随机有限元法，及以此为基础的结构可靠性研究。
The (aeolotropism) and Bauschinger effect resulted from plastic deformation under cyclic loading were reflected by the kinematic hardening model in the SFEM.
针对复杂的交变载荷，采用运动强化模型反映塑性应变引起的各向异性和包辛格效应。
Based on the second-order perturbation technique, the stochastic finite element method (SFEM) of the strength analysis of the turbine blade is introduced in this paper.
本文基于二阶摄动技术研究叶片强度分析的随机有限元方法。
To reduce sampling number and assure simulation precision, Importance Sampling method and Latin Hypercube Sampling method are coupled with Neumann expansion SFEM respectively.
为了减少随机抽样的次数并保证蒙特卡罗法的数值模拟精度，对比引入了重要抽样法和拉丁超立方体抽样方法；
The component randomness is considered. The SFEM is introduced in the iterative formulas of EFEM under cyclic loading to obtain the random response of local stress and strain.
考虑零构件的随机因素，将随机有限元方法引入到交变载荷下弹塑性有限元的迭代格式中，得到局部应力应变的随机响应，为低周疲劳可靠性分析提供了更精确的依据。
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
推导了交变载荷下弹塑性随机有限元的迭代格式，计算了局部多轴应力应变的随机响应。
The iterative formulas of elastoplastic stochastic finite element method (SFEM) under cyclic loading are deduced and the random responses of local multiaxial stress and strain are calculated.
推导了交变载荷下弹塑性随机有限元的迭代格式，计算了局部多轴应力应变的随机响应。
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