Experimental and numerical simulation study on Near-edge/On-edge Low-Velocity impact and residual compressive strength of T300/69 laminates

The problem of central impact of composites has been analysed in-depth, but the damage caused by near-edge and on-edge impact has not been thoroughly discussed. In this paper, three-dimensional hashin failure criterion based on stress description is used to judge the damage of fiber and matrix, and delamination damage is simulated by zero thickness cohesive element. In order to characterize the stiffness degradation of damaged composites, the...