摘要
本文用有限元方法分析了一定初缺陷杆受轴向冲击的弹塑性动态屈曲。由变形功相关的屈曲判据求出屈曲时间,计算了初缺陷及冲击载荷形状和大小对屈曲时间的影响。
Using the finite element method, the dynamic buckling of a bar with finite initial imperfection under axial impact is analyzed in this paper. The buckling time is solved through a deformation work dependence buckling criterion. The effects of the shape and magnitude of initial imperfection and impact load on the bucklling time are also calculated.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1991年第2期153-160,共8页
Explosion and Shock Waves
关键词
杆
冲击
弹塑性
动态屈曲
有限元
dynamic buckling, buckling criterion, axial impact
