A Fully Coupled Thermomechanical Phase Field Method for Modeling Cracks with Frictional Contact

In this paper, a thermomechanical coupled phase field method is developed to model cracks with frictional contact. Compared discrete methods, the can represent arbitrary crack geometry without an explicit representation of surface. The two distinguishable features proposed are: (1) for mechanical phase, no specific algorithm needed imposing contact constraints on fracture surfaces; (2) thermal formulations are incorporating damage parameter so that different conductance conditions accommodated. While stress updated explicitly in regularized interface regions under conditions, conductivity determined conditions. particular, we consider pressure-dependent (PDM) fully along other three models, i.e., conductive (FCM), adiabatic (ACM), and uncoupled (UCM). potential formulation showcased by several benchmark problems. We gain insights into role temperature affecting field. Several 2D boundary value problems addressed, demonstrating model’s ability capture cracking phenomena effect compare our results methods as well very good agreement achieved.