对称角铺设层板的弯曲、稳定与振动分析
BENDING,BUCKLLNG AND VIBRATION OF SYMMETRICAL ANGLE-PLYLAMINATES
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摘要: 本文采用文献中的两步级数展开法,分析了四边简支对称角交铺设叠层板的弯曲、稳定与振动问题。文中给出了板受均布力作用的弯曲问题、振动问题以及只有二对边受均匀压力Nx的稳定问题的数值结果、并且讨论了弯曲-扭转耦合刚度D16和D26对挠度、临界荷载、基频以及与之对应的失稳波形和振型的影响。Abstract: One of the most important characteristics of symmetric angleply laminates is that there exist two terms, D16 and D26 of bending twisting coupling, that makes it almost impossible to obtain, by using traditional series expansion method, the exact solution.In this present paper, the two-step expansion (TSE) technique, proposed recently by the first author, is employed to give a general solution for bending, buckling and vibration of symmetric angle-ply rectangular laminates.