Search results for "Cohesive zone modelling Low-cycle fatigue analysis Damage Elastic–plastic cohesive-frictional interface Composite bonding"

A coupled plasticity-damage cohesive-frictional interface for low-cycle fatigue analysis

2022

A novel thermodynamically consistent cohesive-frictional model for the analysis of interface degradation and failure under either monotonic quasi-static loading or cyclic loading in low-cycle fatigue problems is proposed. Starting from the definition of a suitable Helmholtz energy density function, a phenomenological interface model is developed in the framework of plasticity and damage mechanics. In particular, a coupled plasticitydamage activation function is defined and employed together the consistent evolution rules to capture the evolution of damage and plasticity under the action of the external loads. Due to the specific features of such threshold and flow rules, the initiation and …