Numéro
J. Phys. IV France
Volume 134, August 2006
EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 191 - 196
DOI https://doi.org/10.1051/jp4:2006134029
Publié en ligne 26 juillet 2006
EURODYMAT 2006 - 8th International Conference on Mehanical and Physical Behaviour of Materials under Dynamic Loading
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 191-196

DOI: 10.1051/jp4:2006134029

A simple model for dynamic shear failure of stainless steel

O. Firstenberg, Y. Ashuach and Y. Partom

RAFAEL, PO Box 2250, Haifa, Israel


Published online: 26 July 2006

Abstract
We propose a simple model to reproduce ductile failure by shear localization in simulations of perforations tests. The model incorporates a positive feedback process of shear strain localization which results in a catastrophic decrease of flow stress. We use the model for perforation tests with 304L stainless steel. It succeeds in reproducing perforation thresholds as well as qualitative features of the perforation process, including shear band formation in some of the projectiles.



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