固体发动机复合材料裙轴压屈曲载荷计算

利用线性屈曲控制方程及非线性有限元方法，对固体发动机复合材料裙在轴压作用下的屈曲进行计算。

Calculation of Composite Skirt Axial Compresive Buckling of SRM

The fundamental principles of linear buckling control equation and nonlinear finite element method f0r prediction of composite skirt axtal compressive buckling are presented' The coupling effect and transverse shear is considered in the linear buckling equation ; The stiffness degredation model is considered in nonlinear finite element method. Good apreemcnt between theorctically predicted vaues by the two methods and tested values was found, among the predictcd values, the values by nonlinear method has a lower error.