The Study Of Bulletproof Mechanism And Ballistic Property Of Fiber-reinforced Composite Target

Ballistic composite with outstanding ballistic properties and without twice kill-wound effect has been widely applied in body defence and military arms for the modern high-tech war.for example,ballistic waistcoat,helmets and the components for truck,airplane and marine.It is very important to investigate the penetration process and the damage mechanism of fiber composite panels under the ballistic impact for optimization of bullet-proof composites.Nonlinear dynamic explicit finite element analysis software ANSYS/LS-DYNA version 8.0 is used to simulate the penetration of bulletproof fiber-reinforced composite panels. The residual velocities of the projectile and the deformation of the lamina target are obtained,compare the numerical results with the experimental results,the main conclusions are as follows:1 .Establishes the model of ballistic penetration process of fiber-reinforced composite panels with finite element analysis software ANSYS/LS-DYNA version 8.0,obtains the residual velocity of the projectile.2.Compared the numerical results with the experimental results,the numerical simulation results agrees well with the experimental values.The finite element model of the composite material at the real structure in this paper is valid and reasonable.The model simulates the ballistic penetration process of fiber-reinforced composite panels well and truly.3.On the study of the ballistic mechanism of fiber and composites,the ballistic properties are analyzed in details with the numeric experimental phenomenon and damage characters of composite targets,which suggests the excellent ballistic performance of Kevlar composite material.