摘要
根据圆筒壳的一般理论,假定壳体材料是刚塑性的,按Von Mises条件和有关的塑性增量的Levy-Mises流动定律屈服,并且在应变硬化行为用各向同性的线性关系近似的基础上,导出了一个类似于Lindbergt~[1]的Bessel微分方程。在求出了方程解后,我们对[1]中的壳体1,在简支情况下作出计算,并和[1]的无支持情况作了比较,由此得出圆筒壳是否有简支的端部是不重要的结论。
A Bessel differential equation similar to Lindberg's is derived basing on the general theory of cylindrical shells assuming that shell materials is rigid-plastic, yielding according to the Von Mises conditions and the associated Levy-Mises flow law of incremental plasticity, and that the strain hardening behaviour is approximated by an isotropic linear relationship. After the solution being obtained the shell 1 in Ref. [1] is calculated under the simply supported condition, and compared with the cases of[1] which has no end supports. This result whether a cylindrical shell has simply supported ends is less important is obtained.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1992年第1期28-36,共9页
Journal of Astronautics
关键词
壳体
稳定性
圆筒壳
冲击载荷
Shell stability, Cylindrical shell, Shock load.
