摘要
本文报导了具有不同端部质量的90°圆弧悬臂梁端部受冲击载荷的实验结果.实验中观察到梁在撞击后程短时间内有塑性区段从端部附近移向根部,梁变形达最大后有明显的反向甩动.变形后梁上各点曲率改变量在梁中部附近有极大值,在根部达最大值.实验结果与理想刚塑性模型的计算结果进行了比较.
This paper reports on the experimental results of quadrantal circular beams with warious tip mass subjected to radial impact at the tips. It is observed that a travelling plastic segment moves from the tip towards the base in a very short time after impact and, after the largest deformation arose, the beam wiped in the reverse direction. The change in curvature reaches a maximun value near the middle of the beam and the peak value arises at the base. The results are compared with the rigidplastic solution in Refs. [12-13]
出处
《固体力学学报》
CAS
CSCD
北大核心
1989年第1期24-33,共10页
Chinese Journal of Solid Mechanics
关键词
悬臂曲梁
冲击载荷
冲击
动力响应
Dynamic plastic response, Travelling plastic hinge, Elastic—perfectly plasticity, Elastic viscoplasticity, Rigid—perfectly plastic model.
