Fully Coupling Chemomechanical Yield Theory Based on Evolution Equations

摘要: Coupling chemomechanical yield is one of the key issues in oxidation metal and polymer matrix materials. In this paper, evolving equations for fully coupled thermal–chemical–mechanical processes were derived using theory thermodynamics. Then, condition flow rule directly obtained from evolution by extending von Mises plasticity. The reveals that only chemical reactions or diffusions may lead to material even without mechanical stress, which significantly differs previous works. addition, currently proposed combined with as a new criterion, be applicable predicting durability materials within allowed plastic deformation resulted time dependent diffusion reactions. Particular attention paid isothermal systems isotropic simplicity. Finally, three examples on how reaction evolves simultaneously given show applications present theory.