Mechanical behaviour of a high explosive: multiaxial loading and strain-induced anisotropy

Gaëtane Plassart (1) , Didier Picart (1) , Michel Gratton (2) , Arnaud Frachon (2) , Michael Caliez (2)

1 CEA - Commissariat à l'énergie atomique et aux énergies alternatives
2 MMP - Mécanique des Matériaux et Procédés

Some experimental tests have highlighted a strain-induced anisotropy on a TATB-based PBX. In order to understand the phenomenon, literature is studied. Two interpretations seem possible: an anisotropic damage or a behaviour mainly governed by a kinematic hardening. Several experiments carried out let think that the material strain-induced anisotropy is due to the latter.

Domaines: Mécanique [physics.med-ph]; Mécanique des matériaux [physics.class-ph]; Mécanique des solides [physics.class-ph]

Gaëtane Plassart, Didier Picart, Michel Gratton, Arnaud Frachon, Michael Caliez. Mechanical behaviour of a high explosive: multiaxial loading and strain-induced anisotropy. EUROPYRO - 44TH INTERNATIONAL PYROTECHNICS SOCIETY SEMINAR, Jun 2019, Tours, France. ⟨hal-02268499⟩