【摘要】 利用刚性尖头弹正穿甲金属靶的分析模型,对Borvik和Forrestal等.有关APM2子弹及其弹芯垂直穿甲延性金属靶的实验数据进行重新分析。尽管子弹在穿甲过程中是变形弹,由于刚性弹芯的贡献是最主要的,而铜套、铅帽及底座等对子弹穿甲的影响有限,仍可应用刚性弹穿甲理论对步枪子弹穿甲进行分析。随着靶厚增加,靶板惯性效应对侵彻或穿甲的终点弹道性能影响显著增大;厚靶穿甲时,必须计及靶板惯性效应。更多还原

【Abstract】 By employing the theoretical model of a rigid sharp-nosed projectile perforating the ductile metallic target plate,the present paper re-analyzes the experimental data of APM2 bullet and its hard steel core perforating aluminum armor plates and high-strength steel plates,which were reported by Borvik and Forrestal et al.respectively.Although the bullet deforms during the perforation,the test confirms that the hard steel core dominates in the perforation white the brass jacket,lead cap and end cap only have limited influence on the ballistics.Therefore,the perforation model of a rigid sharp-nosed projectile may be used to analyze the perforation of APM2 bullet.With increasing the thickness of the ductile metallic target plate,the inertia effect of the target will raise its effect on the terminal ballistics distinctly.The inertia effect of the target must be considered in the scenario of thick target plates.更多还原