关于轴向流-固冲击杆动力塑性失效问题的实验研究

EXPERIMENTAL STUDY ON DYNAMIC PLASTIC COLLAPSE OF COLUMNS UNDER AXIAL HYDRODYNAMIC IMPACT

本文对轴向流-固冲击载荷作用下杆的动力塑性失效现象进行了实验研究,分析了轴向流-固冲击杆的弹塑性动力响应特征,观察了动力塑性失效模态。并且,从实验角度定义了临界塑性状态和临界动力塑性失效状态,确定了相应的临界冲击值。

The dynamic plastic collapse of columns under axial hydrodynamic impact is investigated experimentally. In the experiments, the characters of the response of the columns are analysed, the dynamic plastic collapse mode is obsened. Based on the experimental results, the criteria of plastic incipience and plastic collapse are proposed.