The effect of dynamic shock load on the adhesion strength of fiber reinforced composite plates

Abstract In order to optimize the best possible combination, three input variants that influence adhesion properties were chosen for this investigation. The adhesives, fillers used to blend with the adhesives, and surface treatments were selected for this objective. This study has selected these input variants to compare the adhesion property between a thermoset composite and thermoplastic composite plate. The adhesion joint zone was subjected to dynamic impact shock loading, and the adhesion strength was analyzed both before and after the shock exposure. In order to determine the extents of the adhesion strength reduction subsequent to dynamic loading, the specimens’ were evaluated both prior to and subsequent to shock loading. Three distinct thermoset adhesives, including vinyl ester, epoxy, and polyester, are blended with ceramic particles, including silicon and hafnium carbide, are used to bond the composites. In a 1:50 ratio, the additives were incorporated into the adhesives. To assess shock pressure-induced damage, the specimens were characterized after experimentation. The shock exposure appears to have degraded the material extruded specimen’s surface, leaving the interface unmodified. The responses were found to be contingent upon the type of filler used during adhesive blending and the surface treatment. After 50 shocks, composite plates’ adhesion property decreased slightly but after 100 shocks, it decreased significantly. The study found that the composite plate adhesion dropped by 4.97% after 50 shocks. After 100 shocks, adhesion strength dropped 25.46%.