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含能材料  2014 

钢筋混凝土靶厚度影响PELE侵彻效果的数值分析

DOI: 10.3969/j.issn.1006-9941.2014.05.007

Keywords: 侵彻力学,数值模拟,横向效应弹,侵彻,钢筋混凝土靶

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Abstract:

为研究钢筋混凝土靶厚度对横向效应弹(PenetratorwithEnhancedLateralEffect,PELE)侵彻效果的影响,采用ANSYS/LS-DYNA3D软件,对PELE侵彻破坏不同厚度的钢筋混凝土(ReinforcedConcrete,RC)靶进行了数值计算。计算结果表明:利用质量和结构都相同的PELE以800m·s-1的速度垂直撞击混凝土靶板,PELE可最大穿透80cm厚的靶板,在该范围内,靶板由薄变厚时,弹体破碎愈加严重,弹体剩余轴向速度逐渐降低;对靶的侵彻随靶厚的增加,靶破坏效应先增强,然后减弱;当靶厚超过80cm时,弹体的动能全部消耗于侵彻过程中。为验证仿真结果,进行了实弹实验,实验结果也表明:对靶的侵彻随靶厚的增加,破坏效应先增强,然后减弱,35cm厚的靶板破坏最严重;验证了模拟结果的正确性和可靠性。

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