Non-equilibrium thermodynamics and variational principles for fully coupled thermal–mechanical–chemical processes

摘要: In this paper, the chemical Gibbs function variational principle, Helmholtz principle and internal energy based on irreversible thermodynamics are proposed for thermal–chemical–mechanical fully coupling problems. The complete governing equations, including heat conduction, mass diffusion reactions, derived from principles. convective effect can also be in equations principles naturally. Moreover, concentrations entropy jump conditions moving interface between products due to reactions matrix This work provides basis analyses computations of thermochemomechanical