Simulation and Analysis on the Drag Acceleration Characteristic of Rigid Projectiles into Ductile Metallic Plates
The impact of projectiles perforating plastic metallic plates was studied in order to obtain deceleration characteristic of projectiles in the process. Based on cylindrical cavity-expansion theory, several new Formulas of perforation drag acceleration and dissipative energy with take into account three interconnected perforation stages were presented. Perforation experiments that have been performed by SIMLAB Norway on aluminium plates with four thicknesses were simulated using the non-linear finite element code LS-DYNA. Calculations with new model were also carried out. Analytical and numerical results were compared to the experimental findings, and good agreement was in general obtained. Deceleration characteristics in different perforation stages of projectiles were analyzed. Theoretic reference and analytical method were provided for deceleration characteristic evaluation of sharp-nose projectiles and small mass charges.
impact deceleration ductile hole growth rigidprojectile simulation
XUWen-zheng WANGJing-yu LI Xiao-dong HUANG Hao
National Defense Key Subject Laboratory North University of China State Key Laboratory of Exp losion Science and Technology Beijing Institute of Technology Beijing 10
国际会议
2011 International Conference on System Modeling and Optimization(ICSMO 2011)(2011年系统建模与优化国际会议)
贵阳
英文
158-162
2011-01-26（万方平台首次上网日期，不代表论文的发表时间）