Composite damage failure form is various

the damage failure forms including laminated plate damage

colloid crack extension and interface debonding. To investigate damage of laminates

colloid crack propagation

interface delamination inherent relations among the three kinds of damage failure

the hybrid bending (MMB) fracture finite element model is firstly established by using ABAQUS/Explicit software

by comparing the simulation and experimental results

which proves the accuracy of MMB model. Then

the internal relationship among the three failure modes was studied by combining the Hashin failure criterion

extended finite Element method (XFEM) and cohesive force model (CZM). The results show that the damage of laminates can not only affect the time of interface viscous separation failure

but also affect the crack propagation path in colloid

which provides a certain reference for numerical analysis of the damage problem of composites.