长管体斜侵彻有限厚均质靶板简化模型

进行了长管体斜侵彻有限厚靶板的试验. 建立了长管体斜侵彻有限厚均质靶板的简化模型，描述了侵彻的物理图像，对长管体的受力和运动情况进行了分析. 弹坑的剖面形状与长杆体斜侵彻有限厚靶板极为相似，而在正面及背面弹坑形状出现了明显的两个``犄角'. 计算结果表明, 在火炮初速范围内，长管体的剩余速度随撞击速度的增加近似为线性递增. 试验与计算的极限穿透速度吻合较好，说明所建立的模型能够描述侵彻过程.

A SIMPLIFIED MODEL FOR LONG TUBULAR PENETRATION INTO OBLIQUE FINITE HOMOGENEOUS TARGET

The experiments of long tubular penetration into oblique homogeneous target are carried out. On basis of the penetration mechanism, a simplified model for the long tubular penetration into oblique finite homogeneous target isestablished. The patterns of the penetration are described. The motions of the long tube and the external forces are analyzed. The cutaway views of the crater are much similar to those of the long rod, but with two obvious ``horns' in the back and front of the target, respectively. The variationsof the residual velocity with the initial velocity are obtained. The theoretical results agree with experimental data well in the limit velocity, which validates the model established for the penetration course.