Finite Element Analysis for Impact Behavior of glass fiber composite laminate

Abstract

       Glass fiber composite laminates are attractive in many applications like aerospace, aircraft and automobile industry. The behavior of glass fiber composite laminates under low-velocity impact is investigated via the finite element method based on the Hashin failure criteria. The damage and degradation failure are inserted through the calculation based on fracture energy with linear softening. The simulation is to drop weight impact test at three different impact energies ie. (4.92, 9.2, and 14.92) J. The composite square plate is of stacking sequence [0/90]2s, which was manufactured using hand layup technique. The indentation area or penetration depth is recorded for each energy. The photographic investigation is then established to observe the damage and failure induced in the specimen due to the action of impact. FE model is used to measure force, internal and kinetic energy time history to get well understanding the impact scenario during impact. The numerical results were in good agreement with experimental observation.