Abstract
A 3D grain-level formulation for the study of brittle failure in polycrystallinemicrostructures is presented. The microstructure is represented as a Voronoi tessellation and theboundary element method is used to model each crystal of the aggregate. The continuity of theaggregate is enforced through suitable conditions at the intergranular interfaces. The grain-boundarymodel takes into account the onset and evolution of damage by means of an irreversible linearcohesive law, able to address mixed-mode failure conditions. Upon interface failure, a non-linearfrictional contact analysis is introduced for addressing the contact between micro-crack surfaces. Anincremental-iterative algorithm is used for tracking the micro-degradation and cracking evolution. Anumerical test shows the capability of the formulation.
Lingua originale | English |
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Titolo della pubblicazione ospite | Advances in Fracture and Damage Mechanics XII |
Pagine | 233-236 |
Numero di pagine | 4 |
Stato di pubblicazione | Published - 2014 |
All Science Journal Classification (ASJC) codes
- ???subjectarea.asjc.2500.2500???
- ???subjectarea.asjc.2200.2211???
- ???subjectarea.asjc.2200.2210???