Experimental Research and Numerical Analysis of Penetration of the Twaron T750 Aramid Fabric with the 9 mm Parabellum Projectile
Journal Title: Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa - Year 2013, Vol 4, Issue 3
Abstract
The paper presents results of experimental research and numerical analysis of the penetration process of the Twaron T750 aramid fabric with the 9 mm Parabellum projectile (brass jacket, lead core). Numerical simulations of the 9 mm Parabellum projectile impact into 10 and 16 layers of the Twaron T750 fabric with the use of the Ansys Autodyn v13 program for dynamic analyses were conducted on the basis of 3-dimensional solid numerical models. As a boundary condition in the experiment and in the numerical simulations it was assumed that all the four edges of the fabric were fixed. In the numerical simulations the sample of 50x50 mm dimensions and the impact velocities Vi = 448 m/s for 16 layers of the Twaron T750 fabric and Vi = 454 m/s for 10 layers of Twaron T750 fabric were adopted. In the paper the results of the numerical simulations for three material configurations with the same friction coefficients and for different values of yarn-yarn friction in case of one material configuration are presented. Residual velocity of the penetrator for the highest friction coefficient µs = 1 decreased of 13.1% in comparison to simulation with no friction (µs = 0).
Authors and Affiliations
Adam WIŚNIEWSKI, Dawid PACEK
Keywords
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