正交铺设层合圆柱薄壳在外压作用下的屈曲和后屈曲

依据文献[1,2] 提供的圆柱薄壳屈曲的边界层理论,以挠度为摄动参数,采用奇异摄动方法,给出了完善和非完善、非对称正交铺设层合圆柱薄壳在侧向外压和静水外压作用下的屈曲和后屈曲分析.本文给出了多种复合材料层合圆柱薄壳的计算结果,同时讨论了铺层数对屈曲载荷、后屈曲平衡路径的影响.

Buckling and Postbuckling of Cross-ply Laminated Cylindrical Shells Under External Pressure

Based on the boundary layer theory for the buckling of thin elastic shells suggested in refs.[1,2] ,a theoretical analysis for the buckling and postbuckling of perfect and imperfect unsymmetric cross-ply laminated cylindrical shells under lateral or hydrostatic pressure is presented,using the singular perturbation method by taking deflection as the perturbation parameter.Some numerical results for antisymmetric and unsymmetric cross-ply laminated cylindrical shells are given, and the effects of the number of layers on the buckling load and postbuckling be-havior of shells have also been discussed.