Effect of Liner Material Model on Explosively Formed Projectiles (EFP) Simulation

Document Type : Research Article

Authors

Abstract

In this paper, the effect of the liner material model on the result of numerical simulation of Explosively Formed Projectile (EFP) is examined. Johnson-Cook, Steinberg, and Zerilli – Armstrong models are used for the simulation. All models are shown that have a good agreement with the experimental results. Zerilli – Armstrong model predicts final EFP shape with more accuracy in comparison with the other models. The results of simulations indicate that Johnson-Cook and Steinberg models predict the projectile length better than Zerilli – Armstrong model. The velocity of projectile predicted by all models agrees well with the experimental measurement.

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