A spherical cavity expansion model for penetration of ogival-nosed projectiles into concrete targets with shear-dilatancy

作     者：Tao He He-Ming Wen Xiao-Jun Guo 

作者机构：CAS Key Laboratory for Mechanical Behavior and Design of Materials University of Science and Technology of China 230027 Hefei China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2011年第27卷第6期

页      面：1001-1012页

核心收录：

学科分类：081702[工学-化学工艺] 081401[工学-岩土工程] 08[工学] 0817[工学-化学工程与技术] 0814[工学-土木工程] 

主　　题：Spherical cavity expansion Shear dilatancy Ogival-nosed projectile Concrete target Penetration Perforation 

摘      要：A dynamic spherical cavity-expansion penetration model is suggested herein to predict the penetration and perforation of concrete targets struck normally by ogivalnosed *** dilatancy as well as compressibility of the material in comminuted region are considered in the paper by introducing a dilatant-kinematic relation.A procedure is first presented to compute the radial stress at the cavity surface and then a numerical method is used to calculate the results of penetration and perforation with friction being taken into *** influences of various target parameters such as shear strength,bulk modulus,density,Poisson＇s ratio and tensile strength on the depth of penetration are *** is shown that the model predictions are in good agreement with available experimental *** is also shown that the shear strength plays a dominant role in the target resistance to penetration.