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Gradient-Dependent Damage Constitutive: The Second-Order Gradient Damage Model
When the strain tensor, the scalar damage quantity and the Laplacian thereof serve as the state variables of Helmholtz free energy, the general expressions of elasticity-gradient damage constitutive equations are derived directly from the basic law of irreversible thermodynamics by constitutive functional expansion method at the initial state. When damage variable equals to zero, the expressions can be simplified to linear elastic constitutive equations, when the damage gradient vanishes, the expressions can be simplified to the classical damage constitutive equations based on the strain equivalence hypothesis.
Gradient-Dependent Damage Constitutive: The Second-Order Gradient Damage Model
When the strain tensor, the scalar damage quantity and the Laplacian thereof serve as the state variables of Helmholtz free energy, the general expressions of elasticity-gradient damage constitutive equations are derived directly from the basic law of irreversible thermodynamics by constitutive functional expansion method at the initial state. When damage variable equals to zero, the expressions can be simplified to linear elastic constitutive equations, when the damage gradient vanishes, the expressions can be simplified to the classical damage constitutive equations based on the strain equivalence hypothesis.
Gradient-Dependent Damage Constitutive: The Second-Order Gradient Damage Model
Zhao, Bing (author) / Zheng, Ying-ren (author) / Zeng, Ming-hua (author) / Tang, Xue-song (author) / Yan, Xiao-Qiang (author)
GeoHunan International Conference 2009 ; 2009 ; Changsha, Hunan, China
2009-07-13
Conference paper
Electronic Resource
English
Energy , Gradients , Damage , Infrastructure , Geomaterials , China , Thermodynamics , Pavements , Geosynthetics
Gradient-Dependent Damage Constitutive: The Second-Order Gradient Damage Model
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