套管内金属管爆炸挤压的一维简化计算

ONE-DIMENSIONAL CALCULATION ABOUT EXTRUDING MOTION OF STEEL PIPE IN EXPLOSIVE PRESSURE WITH AN OUTER PIPE

本文运用平面圆对称流体弹塑性模型计算了金属管在爆炸载荷受外套管加强作用下的向内挤压运动。计算结果与实测基本一致。表明在本文给定的管相对长及几万大气压力条件下,用一维模型简化计算是合理的。

This paper,using one-dimensional cylindrical geometric elastic-plastic flow,calculated extruding motion of steel pipe in explosive pressure with outer pipe,the fact that result of calculation confolms with the result of experiment showsthat for long steel pipe and several ten thousand atmosphere,the One-dimen-sional calculation is reasonable.