Regarding the linear buckling mode as the initial geometrical defect of the structure, the stability nonlinear analysis of composite case under axial pressure was made by means of the finite element method.

• 利用有限元结构分析法,引入线性屈曲模态作为结构的初始几何缺陷,对复合材料壳体的轴压稳定性进行了非线性分析。