Capturing polycrystal plasticity and intergranular cracks with a novel DIC method

Li Li (1, 2) , Félix Latourte (3) , Jean Michel Muracciole (1, 2, 4) , Laurent Waltz (1, 2, 4) , Laurent Sabatier (1, 5) , Bertrand Wattrisse (1, 2, 4)

1 LMGC - Laboratoire de Mécanique et Génie Civil
2 ThM2 - ThermoMécanique des Matériaux
3 EDF R&D - EDF R&D
4 MIST - Laboratoire de micromécanique et intégrité des structures
5 Servex - Moyens expérimentaux

The aim of this paper is to validate a novel DIC method which allows to capture kinematic fields of potentially cracked polycrystalline aggregates. A key feautre of the method introduced is that itergranular and intragranular effects can be considered explicitly in the data processing. In this paper, we mainly focus on the validation procedure, which was performed on numerical examples associated to cracked polycrustalline aggregates.

Mots clés: Numerical validating; Digital Image Correlation (DIC); Polycrystalline materials; Intergranular cracking

Domaines: Mécanique des solides [physics.class-ph]; Mécanique des matériaux [physics.class-ph]; Thermique [physics.class-ph]; Optique / photonique; Traitement du signal et de l'image [eess.SP]

Li Li, Félix Latourte, Jean Michel Muracciole, Laurent Waltz, Laurent Sabatier, et al.. Capturing polycrystal plasticity and intergranular cracks with a novel DIC method. 11th World Congress on Computational Mechanics (WCCM XI), Jul 2014, Barcelone, Spain. ⟨hal-01175898⟩