纤维缠绕圆柱壳轴对称分叉屈曲

Axisymmetrical Bifurcation Buckling of Filament-Wound Circular Cylindrical Shells

讨论了多层复合材料圆柱壳在轴向压缩载荷的条件下的对称分叉屈曲．基于Ｄｏｎｎｅｌｌ方程，将位移法与复数解法推广应用于纤维缠绕圆柱壳的稳定性问题．提出了壳体在轴向压缩下的轴对称屈曲模态以及临界载荷的算法，特别着重考虑了各类边界条件与耦合效应．其理论和结果可直接应用于固体火箭发动机壳体的结构设计．

Axisymmetrical bifurcation buckling of multilayer composite circular cylindrical shells under axial compression is discussed.Based on the Donned equations, the method of displacement and complex number is extended to this problem according to reference[2].Considering the eight different boundary conditions,the modulus of symmetric bifurcation buckling and the calculation of critical load are presented.The emphases are placed on the boundary conditions and coupling effect.The theory and result can be directly applied to the structural design of shells of rocket engine.