(Article) Fracture of rigid solids: a discrete approach based on damaging interface modelling

Claire Silvani (1) , Thierry Désoyer (1, 2) , Stéphane Bonelli (3)

1 LMA - Laboratoire de Mécanique et d'Acoustique [Marseille]
2 ECM - École Centrale de Marseille
3 UR OHAX - Ouvrages hydrauliques et hydrologie

We describe the progressive and delayed fracture of rigid solids by a discrete modelling. Each rigid solid is considered as an assembly of particles with initial cohesive bonds, the latter decreasing progressively during the loading. A damaging interface model is proposed to describe this progressive phenomenon. The model has been implemented in a discrete element code. The first illustrative example, which is actually a parametric study, deals with the progressive damage and sudden fracture of a single interface submitted to an uniaxial tension. The second example is related to the crushing of an assembly of rigid solids--i.e. a granular medium--submitted to an oedometric compression.

Domaines: Matériaux

Claire Silvani, Thierry Désoyer, Stéphane Bonelli. (Article) Fracture of rigid solids: a discrete approach based on damaging interface modelling. Comptes Rendus Mécanique, 2007, 335 (8), pp.455-460. ⟨10.1016/j.crme.2007.05.023⟩. ⟨hal-00199582⟩