ANALYTICAL MODELING OF WOVEN FABRIC UNDER BALLISTIC PERFORATION

Composite materials have become a key element in designing structural components subjected to impact loading, for example, in personal or vehicle armors. But it is difficult to model the behavior of composite materials under ballistic impact because of the complexity of damage mechanism. The first way to solve this problem is to model the primary part of composite materials before explanation of the behavior of the entire composite. An analytical model of multi-layered fabrics based on the strain rate effect of the fiber property is developed in this paper. Rate-dependent tensile property of Twaron filaments is also discussed. Application of the high strain rate property to ballistic perforation of multi-layered fabrics conforms to the actual situation better than that of the quasi-static property. The analytical model proposed in this paper can be used to calculate the process of ballistic penetration and perforation on soft armours, such as fabric target plate, at intuitive approach and simple algorithm with a little computer process time. Predictions of the residual velocities and energy absorbed by the multi-layered fabric show good agreement with experimental data.