首页|Constitutive modelling of concrete material subjected to low-velocity projectile impact:insights into damage mechanism and target resistance

Constitutive modelling of concrete material subjected to low-velocity projectile impact:insights into damage mechanism and target resistance

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
This paper presents a numerical study to improve the understanding of the complex subject of penetration and perforation of concrete targets impacted by low-velocity projectiles.The main focus is on the damage mechanisms and the major factors that account for the target resistance of the concrete.An improved continuous surface cap model recently proposed was employed.The model was first equipped with element erosion criteria and was adequately validated by comparisons with ballistic experiments.Comprehensive numerical simulations were carried out where the individual influence of tensile,shear,and volumetric behaviors(pore collapse)of a concrete target on its ballistic performance was investigated.Results demonstrated that cratering on the front face and scabbing on the rear face of the concrete target were mainly dominated by its tensile behavior.The major target resistance came from the second tunneling stage which was primarily governed by the shear and volumetric behaviors of the concrete.Particularly,this study captured the pore collapse-induced damage phenomenon during the high-pressure tunneling stage,which has been extensively reported in experiments but has usually been neglected in previous numerical investigations.

PenetrationPerforationDamage mechanismTarget resistanceProjectile impactPore collapse

Shen LIU、Xieping HUANG、Xiangzhen KONG、Qin FANG

展开 >

Center for Hypergravity Experiment and Interdisciplinary Research,Zhejiang University,Hangzhou 310058,China

Institute of Geotechnical Engineering,Zhejiang University,Hangzhou 310058,China

State Key Laboratory of Disaster Prevention&Mitigation of Explosion&Impact,Army Engineering University of PLA,Nanjing 210007,China

Basic Science Center Program for Multiphase Evolution in Hypergravity of the National Natural Science Foundation of ChinaPostdoctoral Fellowship Program of China Postdoctoral Science Foundation

51988101GZC20232338

2024

10.1631/jzus.A2300072

浙江大学学报(英文版)(A辑:应用物理和工程)
浙江大学

浙江大学学报(英文版)(A辑:应用物理和工程)

CSTPCD
影响因子：0.556
ISSN：1673-565X
年,卷(期)：2024.25(2)
  • 42