Atomistic simulation study of nano-void growth under mechanical loading in stainless steel

5 to 6 months

CEA Saclay - 91190 Gif sur Yvette

Personnes à contacter par le candidat

laurent.vanbrutzel@cea.fr -
jeremy.hure@cea.fr

DATE DE DÉBUT SOUHAITÉ

15/03/2022

DATE LIMITE DE CANDIDATURE

31/01/2022

TÉLÉCHARGEZ L’OFFRE

Objectifs

This internship follows a previous internship that lead to preliminary results regarding the effect of surrounding defects on nano-void growth. The following tasks are foreseen during the internship:

  • Bibliographic study on Molecular Dynamics simulations results of nano-void growth;
  • Analysis of the  results  obtained  in  the  previous  internship  by  comparisons  to  available theoretical models;
  • Creating atomistic configurations including nano-voids, matrix defects (dislocations), grain boundaries (Fig. 1b);
  • Performing Molecular Dynamics simulations to assess the combined effects of matrix defects, grain boundaries and mechanical loading (monotonic vs. cyclic) conditions on void growth mechanisms;
  • Analysis of the results obtained by comparisons to available theoretical models;
  • Calibrating continuum-scale models to reproduce the Molecular Dynamics results.