Cohesive-frictional interface model for timber-concrete contacts

This paper presents a two-dimensional interface model for timber-concrete contacts, that has been developed based on the empirical observations from set of friction tests and additional micromechanical assumptions. In tangential direction, accounts initial bonding debonding between surfaces, different static kinetic as well smooth transition them, effects load reversal, pressure-dependence in sticking stiffness slip softening over increasing cumulative slip. normal simple linear cohesive pressure-overclosure behaviour is assumed. The formulated cohesive-frictional framework, coupling damage-based with elastoplasticity-based frictional behaviour. tested various cases verified by comparison 27 contact pairs under cyclic loading varying pressure multiple material pairs. able to capture relevant parts experimentally observed behaviour, indicating suitability present loading.