Simulation on High Velocity Impact Process of Windshield by SPH/FEM Coupling Method

The impact resistance of windshield, especially under the high velocity impact, is very important for passenger´s safety. In this paper, a SPH/FEM (Smoothed Particle Hydrodynamics and Finite Element Method) coupling method was used to analyze the high velocity impact process of windshield. The glass of impact side was discretized by SPH particles to describe the splash performance of glass fragments, while the other layers of windshield were discretized by hexahedron elements. SPH and FEM were combined by defining a contact algorithm. Compared with the experiment results, it is shown that the simulation results are consistent with experimental results well, and the SPH/FEM coupling method can be applied to analyze the high velocity impact failure problem well.