摘要
本文研究了悬臂直角刚架在其自由端受到自身平面内的横向撞击时的塑性动力响应在本文报告的实验中,利用空气炮射出的子弹加载使软钢材料制成的直角刚架产生大挠度塑性变形;同时,依据理想刚塑性材料模型,给出了一个大挠度瞬时模态解。理论分析得到的挠度-载荷曲线与实验结果符合得很好。
The dynamic plastic response of a right-angled frame to-a transversal impact at its tip in its plane is studied In the experiments reported, mild steel right-angled frames were loaded by bullets from an air-gun and underwent the large deflection plastic deformation. By supposing the material of the frames is rigrd perfectly-plastic, a large deflection instantaneous mode solution is constructed. The curves of deflection vs loading calculated from this mode solution are in good agreement with the experimental results.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1989年第2期120-129,共10页
Explosion and Shock Waves
关键词
直角刚架
撞击
挠度
塑性动力响应
Impact, right-angled frame, dynamic plastic response, large deflection.
