CAJ | 학술논문

为探索不同温度下 B炸药易损性的响应特性，评价穿透深度和环境温度对 B炸药响应程度的影响，用12．7 mm 穿甲燃烧弹以850 m·s-1速度侵彻了 B炸药。研究了-40，25，70℃温度下 B 炸药的响应特性。用非线性有限元软件 ANSYS/LS-DYNA模拟了弹丸侵彻过程，研究了 B 炸药力学性能对易损性的影响。结果表明：在25℃条件下，B 炸药极限侵彻深度为200～250 mm。B炸药在-40，25，70℃条件下最高反应级别分别为爆燃、爆炸、爆燃反应。高温、低温环境抑制了B炸药对弹丸侵彻的反应程度。装药剪切模量下降可使 B炸药响应程度降低。
위탐색불동온도하 B작약역손성적향응특성，평개천투심도화배경온도대 B작약향응정도적영향，용12．7 mm 천갑연소탄이850 m·s-1속도침철료 B작약。연구료-40，25，70℃온도하 B 작약적향응특성。용비선성유한원연건 ANSYS/LS-DYNA모의료탄환침철과정，연구료 B 작약역학성능대역손성적영향。결과표명：재25℃조건하，B 작약겁한침철심도위200～250 mm。B작약재-40，25，70℃조건하최고반응급별분별위폭연、폭작、폭연반응。고온、저온배경억제료B작약대탄환침철적반응정도。장약전절모량하강가사 B작약향응정도강저。
In order to explore the vulnerability of Comp. B explosive at different temperatures and evaluate the effects of penetration depth and ambient temperature on the reaction level of Comp. B explosive,the armor-piercing incendiary of 12. 7mm was used to penetrate Comp. B explosive at a speed of 850 m·s-1. The response characteristics of Comp. B explosive at -40,25,70 ℃ were studied. The processes of bullet penetration were simulated by the non-linear finite element software ANSYS/LS-DYNA and the influences of mechanical properties of Comp. B explosives on vulnerability were investigated. Results show that the limit penetra-tion depth of Comp. B explosive is 200 ~250 mm at 25 ℃. The highest level of response for Comp. B explosive at -40 ,25 and 70 ℃ are deflagration,explosion and deflagration,respectively. The level of reaction of bullet penetration to Comp. B explosive is restrained at high temperature or low temperature. The decrease of shear modulus strength of Comp. B charges makes the degrees of response to Comp. B explosives reduce.