摘要
为研究钨锆钛活性破片穿靶后的耦合毁伤机理,开展了钨锆钛活性破片侵彻6 mm Q235钢板和1.5 mm铝板组成的间隔靶的弹道枪实验,观察钢靶穿孔模式、后效铝靶的毁伤模式及活性破片侵彻间隔靶的高速摄像,结合活性破片冲击反应理论、能量守恒原理,计算靶板变形能,分析化学能和动能在耦合毁伤中的贡献占比。研究结果表明:活性破片着靶速度小于800 m/s时,钢靶塞块与破片碎片云在铝靶上造成隆起、侵坑、烧蚀破坏,着靶速度增大到1 187 m/s以上时,铝靶受前层钢靶塞块作用发生冲塞破坏,在碎片云的动能与化学能耦合毁伤作用下出现隆起、裂纹和花瓣翘曲;随着着靶速度的增大,后效靶毁伤面积与活性破片反应程度均呈增大趋势;化学能在耦合毁伤中的贡献度逐渐增大。
In order to study the coupling damage mechanism of W/Zr/Ti reactive fragments after penetrating a target,a ballistic gun experiment is conducted to investigate the penetration of W/Zr/Ti reactive fragments into a spaced target composed of 6 mm-thick Q235 steel plate and 1.5 mm-thick aluminum plate.Combined with the impact reaction theory of reactive fragments and the principle of energy conservation,the target deformation energy is calculated and the contributions of chemical energy and kinetic energy to coupled damage are analyzed from the perforation mode of steel targets,the damage mode of after-effect aluminum targets,and high-speed photography of reactive fragments penetrating the spaced targets.The research results show that,the slug and debris cloud cause bulge,perforation,and ablation damage on the aluminum target when an active fragment hits the target at a speed of less than 800 m/s.When the target hits the target at a speed of more than 1 187 m/s,the aluminum target undergoes shear perforation under the action of the front steel target plug,resulting in bulge,cracks,and petal warping under the coupling damage of kinetic and chemical energies of debris cloud.With the increase of the target velocity,the damage area of rear target and the reaction degree of active fragment show an increasing trend,and the contribution of chemical energy to coupled damage gradually increases.
作者
王在成
徐祎
姜春兰
胡榕
何政
WANG Zaicheng;XU Yi;JIANG Chunlan;HU Rong;HE Zheng(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2023年第12期3862-3871,共10页
Acta Armamentarii
基金
国家自然科学基金项目(11672042)。
关键词
钨锆钛活性破片
侵彻
毁伤效应
间隔靶
W/Zr/Ti reactive fragment
penetration
damage effect
spaced target
