LOW-VELOCITY IMPACT OF WOVEN GLASS FIBER/EPOXY COMPOSITE USING DIFFERENT FIBER ORIENTATION AND NUMBERS OF LAYERS: EXPERIMENT AND SIMULATION

Abstract

-In this work, the synergistic effect of woven structure and asymmetric glass fiber epoxy composites on impact response was studied by experimental and numerical methods based on fiber orientation and number of layers. Three finite element models of G16, G26 and G4 (0/45/90)s, (+45/-45/90)s and (+45/-45)s respectively composites under low velocity impact were established in ABAQUS software and three samples was made same of samples on the finite element model to be tested on drop weight. All samples were manufactured by hand lay-up. Impacts with various energies 3, 9, and 15 J was applied to G16, G26 and G4. The FD curve obtained by simulation is well analyzed with the FD curve obtained by experiments, and the level of the higher values of force obtained from scalar is almost identical to the level of peak force values obtained from experimental tests with the difference in the level of displacement between them. In addition, the highest power obtained for the sample is G26, followed by G16, then G4.