摘要
本文分析了含切口的悬臂梁受飞射物撞击的刚塑性动力响应的完全解,推导了考虑几何大变形效应的“双铰模式”的动力学方程,给出了计算方法和计算结果,最后讨论了耗散能的分配和切口对梁最终变形的影响。
The paper examines the complete solution of a rigid-plastic notched cantilever beam subjected to impact by a projectile. A group of large deflection governing equations for the double-hinge mechanisms is derived. Numerical solution for the equations is presented to calculate the permanent deformation of the beam. Finally, the distribution of the dissipated energy in the beam and the effects of the notch on its plastic deformation are discussed.
出处
《力学学报》
EI
CSCD
北大核心
1993年第1期48-55,共8页
Chinese Journal of Theoretical and Applied Mechanics
基金
博士后基金
关键词
塑性
动力响应
悬臂梁
变形
Dynamic plastic response
Cantilever beam
Large deflection
Double-hinge mechanisms
Dissipated energy
