Effect of Impactor Mass on Dynamic Response and Retention Properties of Composite Plates under Successive Impacts

Abstract

Effect of Impactor Mass on Dynamic Response and Retention Properties of Composite Plates under Successive Impacts

This study mainly focuses on the effect of mass of impactor upon dynamic response of laminated composites. For this purpose two different impactors with different masses were used. The impact velocities were selected so that impactors with different masses had the same kinetic energy. The experiments were performed on simply supported woven E-glass reinforced epoxy laminates which are made of 8 layers stacked symmetrically. The variation of impact force, impactor velocity and laminate displacement versus interaction time were obtained. The impulse and energy absorption characteristics and damage zones were also investigated. After low velocity impact, the test specimens were subjected to three-point bending testing in order to get retention mechanical properties.

Keywords

• Polymer matrix, laminates, impact and ballistic