Numerical study of influence of target thickness and projectile incidence angle on ballistic resistance of the GFRP composites

In this present work, the ballistic resistance of GFRP composite was investigated against 7.52 mm diameter hemispherical nose shaped projectile. The impact tests have been recreated by doing three-dimensional nonlinear finite element analysis on LS DYNA code. The numerical outcomes such as residual and ballistic limit velocity have been found to have close connection with the test results available in literature. The residual velocity of projectile, ballistic limit velocity and energy retaining limit and failure of the composite have additionally been discussed with changing target thickness and projectile impact angles. From the numerical outcomes, it is clear that the target thicknesses and impact angle of projectile shows critical contribution on the ballistic resistance of the target.