摘要
为研究含能结构材料对多层薄钢靶的超高速毁伤特性,利用二级轻气炮开展了PTFE/Al基和Al基全金属两种含能结构材料超高速撞击多层钢靶的典型毁伤模式研究,得到了材料类型和侵彻速度对毁伤效应的影响。研究结果表明,相比于惰性金属材料,两种含能结构材料对多层薄钢靶均具有明显的靶后横向毁伤增强效应,能够对第二层靶板产生大破孔的毁伤效果,破孔孔径可达弹径的4倍以上。基于AUTODYN数值仿真软件开展了含能结构材料参数有效性验证和含能弹体不同侵彻速度下毁伤效果的数值仿真,结果显示J-C强度模型联合Lee-Tarver三项式点火反应模型和J-C强度模型联合Shock状态方程分别能够较好地描述PTFE/Al基和Al基全金属含能结构材料对多层薄钢靶的破孔毁伤特性。此外,材料释能机制的差异使得提高侵彻速度对提升PTFE/Al基含能结构材料的毁伤效果的作用有限,但能够明显提升Al基全金属含能结构材料对多层钢靶板的毁伤效果。
By using penetration experiment and numerical simulation methods,the damage characteristics of the multilayer thin steel target penetrated by reactive materials(RMs)under hypervelocity impact condition was investigated.The two-stage light gas-gun was used to study the damage mode of PTFE/Al based RM and Al-based all-metal RM to multilayer thin steel target,the influence of material type and penetration velocity on damage effect is presented.The results show that,compared with inert metal,both of RMs have lateral damage enhancement effect on multilayer thin steel target,which the broken hole size of the second layer can reach more than 4 times of the bullet dimeter(BD).The AUTODYN numerical simulation software was used to prove the efficiency of the RM parameters and then the damage effect numerical simulation of RMs were carried out.The results show that the damage characteristics of PTFE/Al-based RM and Al-based all-metal RM to multilayer thin steel target can be de-scribed by J-C model combined with Lee-Tarver model and J-C model combined with Shock equation respectively.Additionally,the phenomenon that the increase in penetration speed can hardly improve the lateral damage enhancement effect of the PTFE/Al-based RM but can significantly improve that of the Al-based RM to the multilayer steel target,which is mainly due to the dif-ference in energy releasing mechanisms between two kinds of RMs.
作者
曹进
陈春林
马坤
高鹏飞
田洪畅
冯娜
钱秉文
CAO Jin;CHEN Chun-lin;MA Kun;GAO Peng-fei;TIAN Hong-Chang;FENG Na;QIAN Bing-wen(Northwest Institute of Nuclear Technology,Xi′an 710024,China;Beijing Institute of Technology,Beijing 100081,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2023年第8期786-796,共11页
Chinese Journal of Energetic Materials
基金
国家自然科学基金项目(11772269)。
关键词
PTFE/Al基含能材料
Al基全金属含能材料
超高速撞击
多层钢靶
毁伤效应
PTFE/Al-based reactive material
Al-based all-metal reactive material
hypervelocity impact
multilayer steel target
damage efficiency
