Yüksek performansli kumas zirhlarin bali˙sti˙k dayanimlarinin sayisal olarak i˙ncelenmesi˙

In this study numerical simulation of ballistic impact is carried out for the soft fabric armors. For the simulations, high performance fabrics are chosen as the armor material. In this manner, the ballistic impact response of the fabric is computed using forward finite difference method. Flat-nosed Fragment Simulation Projectile (FSP) hitting the biaxial composite fabric at an angle 90° is analyzed. The yarn segments between hinged joints at crossovers are modeled using discrete mass-spring-damper in pin-joint systems consisting of planar square lattices. After a certain time of impact; displacement of the fabric, change in the velocities and the failure in the material is computed and depicted graphically. The effect of crimp on the ballistic performance of the fabric is examined and discussed.