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Issue 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) 125 - 131
DOI 10.1051/jp4:2006134020
Published online 26 July 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) 125-131
DOI: 10.1051/jp4:2006134020

Modelling dynamic fragmentation of rocks

S. Grange1, S. Mencacci2 and F. Hild1

1  LMT-Cachan, ENS de Cachan$/$CNRS UMR 8535, University of Paris 6, 61 avenue du Président Wilson, 94235 Cachan Cedex, France
2  Nitrochimie, EPC Group, Usine la Dynamite, 13310 St-Martin-de-Crau, France


Published online: 26 July 2006

Abstract
Dynamic loads such as blasts or ballistic impacts induce different fragmentation zones. A damage law is used to describe the fragmentation coupled with a Drucker-Prager model accounting for confined damage. Two limestones are characterised to simulate edge-on impacts that allow for the identification of the friction angle of the Drucker-Prager model to avoid complex triaxial tests.



© EDP Sciences 2006


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