CAJ | 학술논문

为研究钢筋混凝土靶厚度对横向效应弹（Penetrator with Enhanced Lateral Effect，PELE）侵彻效果的影响，采用 ANSYS /LS-DYNA 3D 软件，对 PELE 侵彻破坏不同厚度的钢筋混凝土（Reinforced Concrete，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800 m·s -1的速度垂直撞击混凝土靶板，PELE 可最大穿透80 cm 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80 cm 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，35 cm 厚的靶板破坏最严重；验证了模拟结果的正确性和可靠性。
위연구강근혼응토파후도대횡향효응탄（Penetrator with Enhanced Lateral Effect，PELE）침철효과적영향，채용 ANSYS /LS-DYNA 3D 연건，대 PELE 침철파배불동후도적강근혼응토（Reinforced Concrete，RC）파진행료수치계산。계산결과표명：이용질량화결구도상동적 PELE 이800 m·s -1적속도수직당격혼응토파판，PELE 가최대천투80 cm 후적파판，재해범위내，파판유박변후시，탄체파쇄유가엄중，탄체잉여축향속도축점강저；대파적침철수파후적증가，파파배효응선증강，연후감약；당파후초과80 cm 시，탄체적동능전부소모우침철과정중。위험증방진결과，진행료실탄실험，실험결과야표명：대파적침철수파후적증가，파배효응선증강，연후감약，35 cm 후적파판파배최엄중；험증료모의결과적정학성화가고성。
In order to study the influence of the reinforced concrete target(RC)thickness on penetrator with enhanced lateral effect (PELE)penetrating,the different thickness RC impacted with the velocity of 800 m·s -1 was simulated by LS-DYNA 3D software. Results show that PELE can penetrate the 80 cm thickness target at large. In this range,PELE body shell residual length is shorter with the target getting thicker when PELE could penetrate the targets,and the residual axial velocity of PELE decreases at the same time. With increase of target thickness,the undermining effect of penetration first increases,then decreases. The kinetic energy consumes totally in the penetration process when the targets thickness is over 80 cm. The experiment was carried to verify the sim-ulation results. The experimental and simulated results both show that the 35 cm thickness target is damaged most severely,impl-ying that the simulation are correct and reliable.