The present paper describes the implementation of the DYNA 3D FE code in the analysis of the dynamic axial collapse of thin-walled steel cylindrical tubes. Two distinct deformation modes observed during the loading of such components and classified as "concertina" and "diamond" types of failure are simulated and analysed by this code and the predicted numerical results are compared with actual experimental data obtained from drop-hammer tests on similar specimens, showing a very good agreement.
展开▼
机译：本文介绍了Dyna 3D Fe代码的实现，在分析薄壁钢圆柱管的动态轴向塌陷中。 在加载这些组件中观察到的两个不同的变形模式并被分类为“符号”的故障，并通过该代码进行模拟和分析，并将预测的数值结果与从类似的滴锤测试获得的实际实验数据进行比较 标本，显示非常良好的一致性。
展开▼
