Simulation of an Impact on an Aramid Fabric Panel by A.357 Projectile.

This paper presents a model for impact bullet – panel of woven aramid fabrics in order to use it for an initial assessment of similar panels to protect against bullets in a range of 100...800 m/s. Based on these initial simulations, the designer could select the number of layers for actual tests. The factors that could be varied in these simulations could be the shape and dimensions of the projectiles, their mass and impact velocity. It is presented only the case of impacting a panel with.357 Magnum, with an incidence velocity of 420 m/s. The panel is composed of 8 layers of plain woven fabrics (200 mm x 200 mm), with weft and warp yarns, the yarn geometry being close to Teijin CT736 phenolic fabric, with 1680 DTEX and 410 g/m². The simulation helps to identify the stages of panel failure and to evaluate qualitatively the similarity in panel failure with that of the actual panel, tested under the same conditions as the model. [ABSTRACT FROM AUTHOR]