| 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) | 263 - 268 | |
| DOI | https://doi.org/10.1051/jp4:2006134040 | |
| Publié en ligne | 26 juillet 2006 | |
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 263-268
DOI: 10.1051/jp4:2006134040
Role of the
transition on the
damage patterns of iron
F. Buy1, C. Voltz1, O. Heuzé2 and M. Missonnier2 1 CEA Valduc, 21120 Is-sur-Tille, France
2 CEA DIF, 91260 Bruyères-le-Châtel, France
Published online: 26 July 2006
Abstract
This paper is a part of the study we lead on the dynamic
damage and fracture of iron below and above
phase transition. According to the peak pressure level, one can observe some
remarkable patterns which have been correlated with the
allotropic transformation. In order to explain these
different features, a multiphase equation of state has been developed and
implemented in the 1D version of the hydrocode Hesione. This equation of
state (EoS) is based on Birch formalism for each solid phase and on the
thermodynamic equilibrium assumption in the phase transitions. It accounts
for complex mechanisms that can occur in the material during the
shock-release path such as shock splitting, release shock wave... The
numerical results we get with such an EoS explain the different damage
patterns observed on recovered samples
© EDP Sciences 2006