高速破片对半无限厚钢靶的侵彻试验研究Experimental study on penetration of semi-infinite steel targets under the impact of high speed fragments
侯海量;朱锡;梅志远;谷美邦;王晓强;
摘要(Abstract)：
进行了典型高速破片对半无限厚45号钢靶侵彻试验,并根据Tate-Alekseevskii弹体侵彻模型及理想刚塑性材料模型假定,推导了高速破片冲击下,半无限厚钢靶的侵彻深度计算公式,提出了靶体的抗侵彻阻力以及靶体材料动态屈服强度的计算方法,计算侵彻深度与试验结果吻合良好。结果表明:半无限厚45号钢靶的抗侵彻阻力约为5.246倍静态屈服强度;在平面应变侵彻条件下,当弹速为500～1300m/s时,45号钢的动态屈服强度约为静态屈服强度的2.998倍;弹体的临界侵彻速度为319.9m/s,冲击速度小于临界侵彻速度时不会发生侵彻。
关键词(KeyWords)： 高速碰撞动力学;高速破片;侵彻试验;冲击;动态屈服强度;应变率;45号钢
基金项目(Foundation):
作者(Author): 侯海量;朱锡;梅志远;谷美邦;王晓强;
Email:
DOI:
参考文献(References)：
- [1]Ministry of Defence.The Ballistic Testing of Fragment Prote-ctive Personnel Armours and Materials[P].UK/SC/4697.1981.
- [2]NATO Standardization Agreement.Ballistic test method for p-ersonal armours[S].Draft STANAG2920,1991.
- [3]梅志远,朱锡,张立军.高速破片穿透船用钢靶剩余特性研究[J].工程力学,2005,15(4):235-240.
- [4]Tate A.A theory for the deceleration of long rods after imp-act[J].J Mech Phys Solids,1967,15:387-399.
- [5]Tate A.Further results in the theory of long rod penetration[J].J Mech Phys Solids,1969,17:141-150.
- [6]Anderson C E,Walkwer J D.An examination of long-rod pe-netration[J].Int J Impact Engng,1991,11:481-501.
- [7]Zaera R,Sánchez-Gálvez V.Analytical modelling of normal and oblique ballistic impact on ceramic/metal lightweight ar-mours[J].Int J Impact Engng,1998,21(3):133-148.
- [8]Dikshit S N,Kutumbarao V V,Sundararajan G.The influence of plate hardness on the ballistic penetration of thick steel pl-ates[J].Int J Impact Eng,1995,16(2):293-320.
- [9]余同希,斯壮W J.塑性结构的动力学模型[M].北京:北京大学出版社,2002:12-15.
- [10]钱伟长.穿甲力学[M].北京:国防工业出版社,1984:22-23.