Numerical Investigation of Lead Bullet Collision on Copper / Aluminum / Copper Sandwich Panels by Finite Element Method

Mohammad Reza Meraki¹ Mona Ashraf Hedayati²

1) Instructor, Department of Materials, Birjand University of Technology, Birjand, Iran
2) PhD student, Department of Materials, Azad University South Tehran Branch, Tehran, Iran

Publication : 10th International Conference on Mechanical, Construction, Industrial and Civil Engineering(mmiconf.com)
Abstract :
In this study, the finite element method was used to simulate a three-layer sandwich structure. The numerical results are in good agreement with the experimental results. The results of finite element analysis for different speeds were investigated and shown. By increasing the speed of the bullet and increasing its energy, the rate of degradation is increased and at high speeds the bullet can penetrate the structure by overcoming the top surface of the structure and by crossing the copper layer and causing the surface to become obscured. Important point in all impacts is to increase the structural rigidity until the stress value reaches its maximum.
Keywords : Sandwich Structures Copper/Aluminum/Copper Finite Element Method