Author(s)

M. Stoffel, R. Schmidt & D. Weichert

Abstract

In the present paper theoretical and experimental investigations are made to verify viscoplastic theories applied to thin-walled structures. The vibra- tions of plates are studied under the assumption of small strains and mod- erate rotations theoretically and numerically by using constitutive models of Chaboche and Bodner-Partom. The numerical results are compared with experiments. 1 Introduction In the literature different attempts have been made to study the validity of plastic and viscoplastic models if applied to structural dynamic problems. Structures were subjected to shock waves and detonations and the deformations were compared to calculations, in order to develop theoretical models as simple as possible yielding corre

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