Simulation of Ball Impact on Composite Plate with PP+30% LGF

The failure prediction of the long glass-fiber (LGF) reinforced resin is difficult because of the complicated fiber orientation compare to the short fiber. In order to establish a simulation procedure to represent the failure behavior of the LGF reinforced resin, we have carried out simulations of ball impact on the composite plate with ®polypropylene and 30% LGF using LS-DYNA coupled to DIGIMAT. The fiber orientation was calculated by the mold flow code 3D TIMON and the composite material properties and failure criterion were estimated and verified by DIGIMAT based on mean-field homogenization. The stiffness reduction and fracture progress in the simulation are represented by the First Pseudo Grain Failure model (FPGF). The numerical results of the impact simulation are discussed through comparing the experimental results.