Supported by the National Natural Science Foundation of China (Grant No. 90410012)
The traditional unified viscoplasticity constitutive model can be only applied to metal materials.The study of the unified constitutive theory for metal materials has discovered the correlation between the classical p...
Supported by the National Natural Science Foundation of China (Grant NO. 90410012)
A unified viscoplasticity constitutive model for metal materials is developed within the framework of irreversible thermodynamics, and an expression for the Helmholtz free energy function involving the parameters refl...
the National Natural Science Foundation of China(No.90410012)
A coupled viscoplasticity damage constitutive model for concrete materials is developed within the framework of irreversible thermodynamics. Simultaneously the Hehnholtz free energy function and a non-associated flow ...