In-plane shear behaviour of masonry wall under constant normal load -Experimental investigation and discrete element modelling

Venzal Vincent (1, 2) , Vincent Huon (3, 4) , Thomas Parent (1) , Frédéric Dubois (5) , Stéphane Morel (1) , Bertrand Wattrisse (4)

1 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux
2 AIA Ingénierie
3 Servex - Moyens expérimentaux
4 ThM2 - ThermoMécanique des Matériaux
5 Remics - Réseaux, Moyens Informatiques, Calcul Scientifique

An experimental and numerical study is proposed on a ½ scale masonry wall in order to validate a discrete element model with frictional and cohesive interface. The methodology consists in (i) identification of the cohesive characteristics of the mortars, (ii) macro-scale numerical discrete element simulation in which the previous characteristics are used as input parameter of the model, and (iii) confrontation between the numerical and experimental responses in order to validate the model. The confrontation between experimental and numerical displacement fields indicates that the DEM method simulate correctly the failures modes observed experimentally. The model is also predictive in term of maximum horizontal strength.

Mots clés: Masonry; DEM; Mortar joint; Cohesive zone model; Mixed mode; Experimental characterization

Domaines: Mécanique des matériaux [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]; Mécanique des solides [physics.class-ph]; Mécanique des structures [physics.class-ph]

Venzal Vincent, Vincent Huon, Thomas Parent, Frédéric Dubois, Stéphane Morel, et al.. In-plane shear behaviour of masonry wall under constant normal load -Experimental investigation and discrete element modelling. PhotoMechanics2018, Mar 2018, Toulouse, France. ⟨hal-02080886⟩