Abstract
A two-level homogenization approach is applied for the micromechanical modelling of the elastoplastic material behaviour during various strain-path changes. A mechanical description of the grain is developed through a micro-meso transition based on a modified elastoplastic self-consistent approach which takes into account the dislocation evolution. Next, a meso-macro transition using a self-consistent model is used to deduce the macroscopic behaviour of the polycrystal. A correct agreement is observed between the simulations and the experimental results at the mesoscopic and macroscopic levels.
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Fajoui, J., Gloaguen, D., Courant, B. et al. Micromechanical modelling of the elastoplastic behaviour of metallic material under strain-path changes. Comput Mech 44, 285–296 (2009). https://doi.org/10.1007/s00466-009-0374-7
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DOI: https://doi.org/10.1007/s00466-009-0374-7