关键词: 复合材料圆柱壳, 双稳态特性, 二次开发, 有限元模拟

Abstract: To improve the accuracy and efficiency of the design of bistable composite cylindrical shells,a simplified analytical model based on extensible deformation and uniform curvature assumption was proposed.A plug-in was established for secondary development based on Abaqus with Python language,which achieved the parametric modeling and automatic post-processing.The influences of geometrical parameters,layup parameters and temperature on composite cylindrical shells were discussed.The feasibility and accuracy of analytical model were verified by experimental results.It proved that the analytical model satisfied the design requirements of composite cylindrical shells and laid the foundation for the optimization of composite cylindrical shells.

Key words: composite cylindrical shells, bistability, secondary development, finite element simulation