A note on the deep penetration of projectiles into concrete
A note on the deep penetration of projectiles into concrete
复制标题
关于射弹对混凝土深度侵彻的注记
DOI：
10.1016/j.ijimpeng.2013.11.008
复制
发表时间：
2014-04-01
影响因子：
5.1
通讯作者：
Yang, Y.
中科院分区：
文献类型：
--
作者：
Wen, H. M.;Yang, Y.
本文给出了一个简单的方程，可以在统一的框架内预测弹丸对混凝土目标的侵彻深度。该公式考虑了弹头形状、冲击速度和无侧限抗压强度等参数对平均阻力的影响，平均阻力由弹塑性变形产生的粘结静阻力和速度效应产生的动态阻力两部分组成。结果表明，该方程与已有的混凝土靶侵彻实验数据吻合较好。研究还表明，无侧限抗压强度在75~150 MPa范围内的混凝土材料的平均侵彻阻力几乎相同，这可能对混凝土抗弹丸侵彻目标的设计具有重要意义。(C)2013爱思唯尔有限公司。保留所有权利。
A simple equation is presented herein to predict the deep penetration of concrete targets struck normally by projectiles within a unified framework. The effects of various parameters such as nose shape, impact velocity and unconfined compressive strength are considered in the formulation by the mean resistive pressure which consists of two parts, namely, cohesive static resistive pressure due to the elastic-plastic deformations and the dynamic resistive pressure arising from velocity effects. It is demonstrated that the present equation is in good agreement with available experimental data for the penetration of concrete targets. It is also demonstrated that the mean penetration resistance of concrete materials with unconfined compressive strengths ranging from 75 MPa to 150 MPa is almost the same which may have serious implication for the design of concrete targets against projectile penetration. (C) 2013 Elsevier Ltd. All rights reserved.