Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-1573 - C7-1576
DOI http://dx.doi.org/10.1051/jp4:19937246
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-1573-C7-1576

DOI: 10.1051/jp4:19937246

Compaction isostatique d'un explosif agrégataire

D. PICART1 and P. GILORMINI2

1  Commissariat à l'Energie Atomique, Le Ripault, 37260 Monts, France
2  Laboratoire de Mécanique et Technologie, ENS de Cachan, CNRS, Université Paris VI, 61 av. Pdt Wilson, 94230 Cachan, France


Abstract
The compaction process which tsansforms an explosive powder into a quasi-compact material is studied to determine the resulting microscopic field of void volume fraction. We have performed quasi-static isostatic compaction with a pressing tool developed especially for this application. The behavior is simulated with a hollow sphere mode1 using an elastic viscoplastic power law for the solid fraction. The resulting constitutive law has been implemented in the finite element code ABAQUS which is used to simulate the forming process.



© EDP Sciences 1993