【摘要】 利用二级轻气炮将直径４ｍｍ、长４０ｍｍ的圆往形钨杆加速到１．５～２．１ｋｍ／ｓ的高速度，以入射角θ＝０°～８５°侵彻半无限钢靶。通过光电测试和回收样品的观察分析得到了钨杆击靶速度、入射角度对侵彻深度、坑体形状以及弹靶材料微观结构的影响。确认了斜侵彻时坑深的垂直分量与正入射时侵深之间的余弦变化关系。对所得结果进行了简要的讨论。更多还原

【Abstract】 Tungsten rod bearing 4 mm-diameter and 40 mm-length was accelerated to velocities in the range 1. 5～2. 1 km/s by using the two-stage light gas gun to penetrate a semj-infinite-thick steel target with incident angle θ=0°～85°. The influences of the impacting velocity and the incident angle of tungsten rod on the penetrating depth,the shapes of the crater and the microstructure changes of the target were obtained by electronic and optical measurment and analysis of the recovering sample. Moreover,the cosine relationship of the vertical component of the crater depth by oblique penetration with that of the vertical penetration was obtained. Simple discussion was performed on the results.更多还原