Numerical Simulation of the Protection System of Explosive Reaction Armor
There are some extreme conditions in the process of metallic jet penetrating the explosive reaction armor (ERA),such as high instantaneity,large deformation,et al.Based on the smoothed particle hydrodynamics (SPH) method,the generalized density approximate formula is proposed and the Held criterion is introduced.Then the numerical SPH model of metallic jet penetrating the explosive reaction armor is built to study its protection mechanics.The calculation result meets well with the theoretical value.The influences of some parameters,such as thickness of plate and attacking angle,on the protecting effect of explosive reaction armor are analyzed,aiming at providing references for the related engineering application.
numerical simulation ERA protection mechanics SPH generalized density approximate
Wenhua Chu Aman Zhang Xiongliang Yao
College of Shipbuilding Engineering Harbin Engineering University Harbin,150001,China
国际会议
杭州
英文
2880-2883
2013-03-22（万方平台首次上网日期，不代表论文的发表时间）