Abstract
Steady state thermomechanical deformations of a target hit by a rigid cylindrical penetrator with a hemispherical nose are studied by using the finite element method. The target material is presumed to exhibit thermal softening but strain and strain-rate hardening. Computed results by using the 6-noded triangular elements and 9-noded rectangular elements are found to match well. The Petrov-Galerkin formulation of the problem has not given satisfactory results thus far.
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