有限柱形空腔膨胀理论及其应用

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (4) : 139-143,.

论文

有限柱形空腔膨胀理论及其应用

蒋志刚 ; 宋殿义; 曾首义

作者信息 +

A Finite Cylindrical Cavity Expansion Theory and Its Application

JIANG Zhigang ; SONG Dianyi; Zeng Shouyi

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文章历史 +

摘要

摘要：为研究有限平面尺寸金属厚靶侵彻问题，提出了有限柱形空腔膨胀理论。考虑侧面自由边界，将理想弹塑性材料的空腔膨胀过程分为弹塑性阶段和塑性阶段，得到了空腔壁径向压力的解析解。基于Tate磨蚀杆模型，应用有限柱形空腔膨胀理论计算靶的侵彻阻力，建立了长杆弹侵彻有限直径圆柱形金属厚靶工程模型。与现有文献试验比较表明，本文工程模型计算的侵彻深度与弹道试验结果吻合较好。

Abstract

ABSTRACT：A Finite Cylindrical Cavity Expansion（FCCE）theory was proposed to the penetration onto thick metal targets with finite planar dimensions. The cavity expansion process in elastic-plastic material with free boundary was divided into elastic-plastic and plastic stages，and the analytical solutions of the radial pressure on the cavity wall were obtained. Based on the Tate's eroding rod model，an engineering model for the penetration of long-rod project onto cylindrical thick metal targets with finite diameters was presented by using the FCCE theory for the target's resistance to penetration. Comparisons between the presented model and previously published ballistic experiments show that the penetration depths from the presented model are in good agreement with those from the ballistic experiments.

导出引用

蒋志刚;宋殿义; 曾首义. 有限柱形空腔膨胀理论及其应用[J]. 振动与冲击, 2011, 30(4): 139-143,

JIANG Zhigang;SONG Dianyi; Zeng Shouyi. A Finite Cylindrical Cavity Expansion Theory and Its Application[J]. Journal of Vibration and Shock, 2011, 30(4): 139-143,