Numerical simulations of ductile shear fracture in single and polycrystals
5 to 6 months
CEA Saclay - 91190 Gif sur Yvette
The objectives and tasks foreseen for the internship are:
- Bibliographic study : Exhaustive review of the literature on void shearing in single crystals, from an experimental, modelling and numerical perspectives;
- Reference simulations : Porous unit cell simulations (similar to Fig. 2a) using FFT-based solver AMITEX_FFTP to gather a database on which the model will be calibrated;
- Modelling : Proposition of a complete set of homogenized constitutive equations for void shearing in single crystals, implementation in MFront code generator and validation;
- Polycrystalline simulations: Crack path prediction in polycrystalline materials based on the model developed, using FFT-based solver AMITEX_FFTP.