高压物理学报2017，Vol.31Issue(2)：103-113,11.DOI:10.11858/gywlxb.2017.02.002
射弹冲击下带预裂槽金属靶的防护性能研究
Resistance Performance of Grooved Metal Target Subjected to Projectile Impact
摘要
Abstract
The damage modes and resistance performance of the annular pre-cut metal target impacted by the projectile were studied by experiments and numerical simulation.Influences of the projectile nose shape,the diameter as well as the depth of the annular groove on the resistance performance of the target were analyzed.The results show that there exist two kinds of damage modes for the target with an annular groove,one being the penetration of the inner part of the groove and the other the fracture along the bottom of the annular groove.The critical damage velocity (CDV) is closely related to the damage modes of the target.Generally,the grooved target was easier to be damaged than the intact one.The CDV decreases with the increase of the annular groove depth while it goes up with the increase of the annular groove diameter.Compared with the oval nose projectile,the CDV of the target is smaller for the flat nose projectile.The microscopic analysis shows that when the adiabatic shear band is formed inside the target,the plug is easier to be formed and the target is easier to be damaged.关键词
刻槽金属靶/防护性能/弹头形状/毁伤模式/绝热剪切带Key words
grooved metal target/resistance performance/projectile nose shape/damage modes/adiabatic shear band分类
数理科学引用本文复制引用
童宗保,王金相,梁丽,钱吉胜,唐奎..射弹冲击下带预裂槽金属靶的防护性能研究[J].高压物理学报,2017,31(2):103-113,11.基金项目
National Natural Science Foundation of China(11272158,11672138) （11272158,11672138）
Foundation of Science and Technology on Transient Physics Laboratory (9140C300405150C30005) （9140C300405150C30005）
