| 金属厚靶的超高速碰撞开坑实验 |
| |
| 引用本文： | 孙庚辰,谈庆明.金属厚靶的超高速碰撞开坑实验[J].兵工学报,1994,15(1):27-31. |
| |
| 作者姓名： | 孙庚辰 谈庆明 |
| |
| 作者单位： | 中国科学院力学研究所 |
| |
| 摘 要： | 介绍了对高速球形弹丸撞击金属厚靶的开坑现象所进行的实验研究。最高弹速为７．５ｋｍ／ｓ；弹靶材料有７种组合：硬铝打硬铝，钢打钢，黄铜打黄铜，钢打硬铝，硬铝打钢，钢打纯铜和硬铝打铅。用量纲分析归纳前６种（即铅靶除外）情况，得到坑深Ｐ和弹径Ｄｐ之比值的经验关系是 Ｐ／Ｄｐ＝０．２７４（Ｐｐ／Ｐｔ）＾０．７２５（ｖ／√Ｙｔ／Ｐｔ）＾２／３其中ｖ是弹速，Ｐｐ和Ｐｔ是弹和靶的材料密度，Ｙｔ是靶板材料的动态屈用
|
| 关 键 词： | 弹丸 金属厚靶 碰撞 开坑实验 |
CRATERING EXPERIMENTS WITH HYPERVELOCITY IMPACT UPON THICK METALLIC TARGETS |
| |
| Sun Gengchen,Tan Qingming,Zao Chengxiou,Ge Xiezhen.CRATERING EXPERIMENTS WITH HYPERVELOCITY IMPACT UPON THICK METALLIC TARGETS[J].Acta Armamentarii,1994,15(1):27-31. |
| |
| Authors: | Sun Gengchen Tan Qingming Zao Chengxiou Ge Xiezhen |
| |
| Abstract: | The phenomenon of cratering during a hypervelocity impact of a spherical projectile upon a thick metallic target has been investigated experimentally,the highest velocity of projectile experiment with being 7.5km/s.Seven sets of projectile-target material combinations were used.An empirical relationship is deduced from the experimental data,where P represents the penetration depth,D p the crater diameter,Pp and P1 the density of projeetile and target material respectively,and Y1 the dynamical yield strangth of target material.The shape of the crater changed rapidly as the velocity increased,toward a roughly hemi-spherical shape for certain projectile-target material combinations. |
| |
| Keywords: | hypervelocity impact penetration cratering |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《兵工学报》浏览原始摘要信息 |
|
点击此处可从《兵工学报》下载全文 |
|
