An analytical model for perforation of ceramic/multi-layered planar woven fabric targets by blunt projectiles

作者：Feli S^*; Yas M H; Asgari M R

来源：Composite Structures, 2011, 93(2): 548-556.

DOI：10.1016/j.compstruct.2010.08.025

• Woven fabric
• Ceramic
• Perforation
• Impact
• Projectile

An analytical model has been developed in this paper for perforation of ceramic/multi-layer woven fabric targets by blunt projectiles In previous Chocron-Galvez analytical model the semi-angle of ceramic conoid is constant and the strain rate effects are also neglected in the stress-strain behavior of the yams and only strain energy absorbed by the yarns is considered
In this paper which is an Improvement to the Chocron-Galvez analytical model for modeling the fragmented ceramic conoid the Zaera-Sanchez-Galvez analytical model has been used and the semi-angle of ceramic conoid has been modified For modeling the back-up woven-fabric material and deformation of yarns during perforation, the kinetic and strain energy of yarns has been determined In the stress-strain relation of yarns the effect of the strain rate is considered Furthermore a failure model based on the energy absorbed until failure by woven fabric is also used Residual velocity velocity-time history of projectile residual mass of fragmented ceramic conoid, penetration depth until failure of yarns and energy absorbed by woven fabric are all estimated by new analytical model Velocity-time history of the projectile shows a good agreement with the Cho

• 出版日期2011-1