扭转杆失稳载荷数字模型的确立

Numerical Model Investigation of a Pre-twisted Bar under Buckling Load

文中介绍了扭转杆件在受压失稳载荷下的数字与试验研究 ;建立了扭转杆件的计算机数字模型 ;同时做了各种不同扭转角 ,不同截面尺寸的扭转杆件的稳定性试验 ,进行了数据分析 ,进而对失稳方向和失稳位置也进行了测试 ,取得一致结果。

This paper reports a numerical-experimental approach to pre-twisted bars under buckling load Based on theoretical results obtained by other authors,a numerical model was developed,in order to analyze different boundary conditions Several twisted specimens,verying in geometry of the rectangular cross section and in pitch,were tested in order to compare the results for different combinations of constraints An image analysis system was also used to measure the position and the direction of the buckle