Analysis of Impact Strength on Polymer Matrix Composites Using Projectile Parameters for Combat Vehicle Application

Our research objective recognizes projectile parameters effect for impact strength of carbon fiber reinforced epoxy sap composite. For this reason, epoxy carbon unidirectional 3D finite element analysis (FEA) model has been demonstrated by using ANSYS (ACP)/Explicit. High velocity/ ballistics impact characteristics such has deformation, stress and strain induced on the epoxy carbon unidirectional has been stimulated. The damage becomes asymmetric and increases with the increase in the projectile material (Titanium alloy), size (120 mm) and speed (700, 750, 800 and 850 m/s) as a consequence of change in stress field profile. The FE strategy is used to model the specimen in high speed/ballistic impact situation. The projectile and the composite layers are modeled utilizing ANSYS/ACP. The FEA model contains two particular parts such as projectile and composite layers. At first, projectile has modeled as a rigid body, properties of material are imported from the ANSYS material library, then underlying speed of the projectile is set in m/sec and the range of the projectile is set in similar manner. At that point so as to show a composite layer ANSYS/ACP is used, at first, a fabric is made which incorporates the directional properties of the composite. At that point, a stack is made where various fabrics could be included with shifting edges. The present model has fabric with thickness of 5 mm and a stack comprising four fabrics at angles [0/45/90/-45]. The mesh sensitivity, maximum stress and maximum strain induced in the test sample, and the projectile materials are found and the parameters that influence the impact strength of the epoxy carbon composites are identified.