Author(s)

N. Heider and U. Giinther

Abstract

Penetration experiments on concrete targets are interpreted with empirical formulae and with the cavity expansion theory. The empirical models predict significantly too low penetration depths. The cavity expansion theory gives an agreement between theory and experiment within less than 4 %. The applied material model parameters for concrete are discussed. 1. Introduction The performance of penetrators against concrete can be significantly increased by an improved contour of the penetrator. During the last years TDW was successful in developing penetrator designs with an increased penetration capability in concrete accompanied with absolutely stable flight trajectories. The higher penetration could not be predicted wih available empirical models from the literature because these models are based on experiments with conventio

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