Modeling the Role of Friction During Ballistic Impact ofHigh-Strength Plain-Woven Fabric

摘要

In order to examine the role of interfacial friction during ballistic impact of high-strength plainwovenrnfabrics, a commercially available finite element analysis code (LS-DYNA) was used to modelrnthe ballistic impact of a rigid sphere into a square patch of plain-woven fabric. The friction betweenrnyarns at crossovers and between the sphere and the fabric are accounted for and the frictionrncoefficients were varied. The fabric energy absorption capacities, deformation profiles and impactrnloads at different frictional conditions were obtained from the modeling efforts. Results show that therninterfacial friction delayed the failure of the fabric and substantially increased the impact load. Thernincrease of impact load allowed the fabric to absorb more energy. Simulation results also indicaternthat the friction effects were influenced by boundary conditions.