Transverse Impact Behavior Of Three-dimensional Orthogonal Hybrid Woven Composites And Finite Element Analysis

Recently, fiber reinforcement composites is widely used in the field of the military aviation, vehicle, and civilian equipment, so reinforced composite attracts more and more interests and attention due to its outstanding mechanical and competitive production cost.As a typical 3-D construction composite, 3-D orthogonal woven composites is famous for its excellent mechanical property, especially the high resistance of delaminate and fracture. In this experiment, Twaron fiber was used as warp yarns and Z yarns, meanwhile E-glass fiber was used as the weft yarns during the weaving process, 3-D orthogonal woven composites were made by VARTM technique.The mechanical behavior of 3-D orthogonal woven composites were tested by NEW MTS and SHPB at quasi-static and transverse impact respectively, the result indicated that energy absorption for composites is sensitivity to the impact velocity, The failure modes under quasi-static transverse loading are tensile failure on back side and compressive failure on the front side, while those in transverse impact are matrix cracking, fiber breakage and fiber pull-out. The numerical simulation for transverse impact has been realized by ABAQUS, which is a commercial software of the finite element analysis, combined with the subroutine, the impact behavior of 3-D orthogonal woven composites can be calculated accurately, because the subroutine not only describes the structure of the composite, but also controls the failure mode of the impact.