纤维增强复合材料圆柱壳的屈曲计算

BUCKLNG COMPUTATION FOR CYLIDRICAL CASES OF A FIBER-REINFORCED COMPOSITE

关键词:  纤维增强复合材料  圆柱壳体  强度计算

Key words:  Fiber reinforecd composite  Cylindrical shell  Strength computation

摘要:

本文利用各向异性多层扁壳的大挠度方程,探讨了正交各向异性多层圆柱壳,在考虑偶合效应和沿厚度方向剪切变形时的轴压,外压及其联合作用下的稳定性问题.用逆解法,给出正交各向异性多层圆柱壳在薄膜力作用下的临界载荷算式.进行了实例计算,并与国内、外实例的实验值比较,符合得相当好.

Abstract:

Applying the large distortion equations of the laminated anisotropic shallow shell, this paper investigation the stability problem of the laminated orthotropic cylindrical case, which are caused by axial pressure, external pressure and their combined action with the consideration of coupled effects and shear deformation along the thick of the case.According to the method of anti-solution, the critical load formula for the laminated orthotropic cylindrical case under the action of membrance forces was given. Some practical examples were treated with the help of the method and comparison had been made between the computational results and the experimental data done at home and abroud.They are in very good agreements.