论文部分内容阅读
对于在横向冲击荷载作用下,施加轴力的缺陷柱的屈曲行为采用有限元模拟分析。笔者通过有限元软件对于实验进行模拟,输入相同的边界条件、轴力、速度、加速度和质量等相关参数,从而对缺陷柱受偶然荷载冲击时的能量吸收进行分析。再通过具体实验中测量所得的数据来验证模拟结果,从而可知,受轴力压缩的缺陷柱在受到横向冲击后,试件存在的缺陷类型对于试件的垮塌以及塑性变形产生不同的影响。
The buckling behavior of defect columns subjected to axial force under transverse impact load was analyzed by finite element method. The author simulates the experiment by finite element software and inputs the same boundary conditions, axial force, velocity, acceleration and mass and other related parameters to analyze the energy absorption of the defect column under the occasional load impact. Then the simulation results are validated through the data obtained from the specific experiments. It can be seen that the defect types affected by the axial compression of the defect column have different effects on the collapse and plastic deformation of the specimen after being subjected to lateral impact.