摘要
针对SiC陶瓷板、超高分子量聚乙烯(UHMWPE)纤维板层合而成的复合结构,为掌握组元厚度对其抗弹性能的影响规律,进行12.7 mm穿甲燃烧弹对复合结构的侵彻试验,获得不同撞击速度下的侵彻效果。建立弹体对复合结构侵彻的有限元计算模型,并通过试验验证计算模型的可靠性。采用被验证的计算模型对12.7 mm穿甲燃烧弹侵彻不同厚度组元的复合结构进行仿真计算,分析复合结构在弹体侵彻下的破坏机制及抗弹性能影响因素。研究结果表明:所建立的有限元模型能够可靠计算12.7 mm穿甲燃烧弹对复合结构的侵彻效应;复合结构抗弹性能随组元厚度增加呈线性增加,SiC陶瓷对抗弹性能的影响较UHMWPE纤维板大;随SiC陶瓷与UHMWPE纤维板厚度比的增加,复合结构抗弹体侵彻性能先增强后减小,当厚度比在0.2~0.4之间时,复合结构抗弹体侵彻性能最佳。
The composite structure composed of SiC ceramic board and ultra-high molecular weight polyethylene(UHMWPE)fiberboard is studied.In order to understand the influence of component thickness on the penetration resistance of the anti-ballistic body,the test of 12.7 mm armor-piercing incendiary projectile penetrating into the composite structure was made to obtain the penetration effect at different impact velocities.A finite element model of a projectile penetrating into the composite structure is established,and the reliability of the model is verified by tests.The proposed finite element model is used to simulate the composite structure of 12.7 mm armor piercing incendiary projectile penetrating into different thickness components,and the failure mechanism and anti-ballistic performance of composite structure subjected to projectile penetration are analyzed.The results show that the proposed finite element model can be used to reliably calculate the effect of 12.7 mm armor piercing incendiary projectile penetrating into the composite structure.The ballistic performance of the composite structure increases linearly with the increase in the component thickness,and the influence of SiC ceramics on the ballistic performance is greater than that of UHMWPE fiberboard.With the increase in the thickness ratio of SiC ceramic and UHMWPE fiberboard,the ballistic performance of composite structure first increases and then decreases.When the thickness ratio is between 0.2 and 0.4,the ballistic performance of composite structure is the best.
作者
李永鹏
徐豫新
张健
花培鑫
赵晓旭
LI Yongpeng;XU Yuxin;ZHANG Jian;HUA Peixin;ZHAO Xiaoxu(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of High Energy Density Materials of Ministry of Education,Beijing 100081,China;Beijing Institute of Technology Chongqing Innovation Center,Beijing Institute of Technology,Chongqing 401120,China;Tangshan Research Institute, Beijing Institute of Technology, Tangshan 063000, Hebei, China;School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China;College of Information Engineering,Capital Normal University,Beijing 100048,China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2022年第6期1355-1364,共10页
Acta Armamentarii
基金
国家部委基础科研基金资助项目(JPPT-2017-GJGG-001-2)
北京市教育委员会科技计划一般项目(KM201910028018)。
关键词
穿甲燃烧弹
SIC陶瓷
UHMWPE纤维板
抗弹性能
armor piercing incendiary projectile
silicon carbide ceramics
ultra-high molecular weight polyethylene fiberboard
ballistic performance
