| Issue |
J. Phys. IV France
Volume 08, Number PR8, November 1998
2nd European Mechanics of Materials Conference on Mechanics of Materials with Intrinsic Length Scale : Physics, Experiments, Modelling and Applications
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| Page(s) | Pr8-55 - Pr8-61 | |
| DOI | https://doi.org/10.1051/jp4:1998807 | |
2nd European Mechanics of Materials Conference on Mechanics of Materials with Intrinsic Length Scale : Physics, Experiments, Modelling and Applications
J. Phys. IV France 08 (1998) Pr8-55-Pr8-61
DOI: 10.1051/jp4:1998807
1 Department of Mechanical Engineering, Imperial College of Science, Technology and Medicine, University of London, London SW7 2BX, U.K.
2 Structures and Damage Mechanics Department, ONERA, 29 avenue de la Division Leclerc, 92320 Châtillon cedex, France
© EDP Sciences 1998
J. Phys. IV France 08 (1998) Pr8-55-Pr8-61
DOI: 10.1051/jp4:1998807
Length scale effects on the geometric softening of precipitated single crystals
E.P. Busso1, F. Meissonnier1, N.P. O'Dowd1 and D. Nouailhas21 Department of Mechanical Engineering, Imperial College of Science, Technology and Medicine, University of London, London SW7 2BX, U.K.
2 Structures and Damage Mechanics Department, ONERA, 29 avenue de la Division Leclerc, 92320 Châtillon cedex, France
Abstract
The understanding of the conditions under which inelastic deformation evolves in precipitated γ/γ' single crystal materials requires analytical and numerical frameworks which incorporate both time and spatial-dependent behaviour. In this work, an existing rate-dependent crystallographic formulation is employed to investigate the effect of the normalised length scale associated with the soft γ channel width on the geometric softening caused by the activation of additional slip systems due to large lattice rotations.
© EDP Sciences 1998