Abstract:

The paper discussed the simulation of the impact on three-dimensional braided composites in terms of the principle, method and steps of solution of the related explicit formulation. Geometric model of three-dimensional braided fabric and resin was built, taking into consideration the nonlinear relationship between fiber and resin and betweent project, fiber, and resin. The residual velocity of the project obtained by simulative computation is basically in agreement with the actual speed got by testing. Accordingly, energy absorbing mechanism of the 3-D braided composites was gained, along with displacement of projectile and contact force. Destructive feature of the target when hit by the project was simulated, and it offered reference for the design of protective material against light impact.