CTH analysis of Tantalum EFP formation using the BCJ model
نویسندگان
چکیده
This paper presents an Eulerian shock physics analysis of the formation of a Tantalum explosively-formed projectile (EFP). Recent modi cations to the Bammann-Chiesa-Johnson (BCJ) thermo-visco-poro-plasticity model are brie y described. Speci cally, a general pressure and porositydependent yield function is incorporated within the BCJ model in order to be able to consider various representations of porosity (a.k.a., damage) evolution. Experimental observation of an EFP event is compared with CTH simulations considering di erent representations of porosity evolution.
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