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采用正规化处理技术而使量纲统一的方法，推导了一种计算复合材料层合板应力效应的方法，利用这种方法直接建立了外载荷和各单层板应力之间的关系，减免了中间繁琐的计算过程而各单层板的应力是通过摄动随机有限元（ Ｓ Ｆ Ｅ Ｍ） 得到的， Ｓ Ｆ Ｅ Ｍ 能够比较精确地反映载荷的不确定性和材料特性的不均匀性对结构的影响，而这种影响是通过单元应力的均值及其协方差来反映的之后，再把这些应力效应应用到结构可靠性的分析计算中，以结构的可靠性指标（ 或失效概率） 来最终表示这些不定量对结构的影响文中还通过不同的失效准则对所计算的结构进行了分析，以比较其不同之处和对结构计算结果的影响最后，利用串联系统模型给出结构系统失效概率的简单界限
Using the method of regularization to make the dimension uniform, a method to calculate the stress effect of composite laminates is deduced. By using this method, the relationship between the external load and the stress of single-layer slab is directly established, The cumbersome calculation procedure and the stress of each single-layer plate is obtained by perturbing the stochastic finite element (S F E M), which can more accurately reflect the uncertainty of load and the inhomogeneity of material properties Structure, and this effect is reflected by the mean value of unit stress and its covariance. These stress effects are then applied to the structural reliability analysis and calculation. The structural reliability index (or failure probability) To finally show the effect of these uncertainties on the structure. The calculated structure is also analyzed by different failure criteria to compare the differences and the impact on the structural calculation results. Finally, the structure is given using a tandem system model Simple limits of the probability of system failure