Finite element simulation of low velocity impact damage on composite laminates

A 3D finite element model with cohesive was established for simulating composite laminated under transversely low velocity impact.The strain-based failure criterion of composite including fiber tensile failure,fiber compress failure,matrix crushing and matrix cracking with corresponding stiffness degradation technology,were adopted to model the in-plate damage.Cohesive elements were used for modeling the regions between two laminas.The initial...