The Experiment Investigation of the Dynamic Buckling of the Columns under Axial Impact1

摘要：

The dynamic buckling of the elastic perfect columns under axial impact which one end is fixed, and the other end is clamped is studied experimentally. Basing on the outer trigger, the waveform of two strain gauges that are attached in symmetric pairs, on opposite columns faces near the peak of the columns buckling mode is recorded by electro-device. According to measured stress and critical bifurcate time, critical buckling load is acquired. The experimental results show that the dynamic critical load of the columns is distinctly greater than the static one under the same boundary conditions and the effect of stress wave plays an important part in the occurring1 and the growing of the buckling.

关键词： dynamic buckling bifurcation time the effect stress wave critical buckling load

作者: HAN Zhijun ZHANG Shanyuan

作者单位: Department of Mechanics, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, P. R. China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）