One Surface Model for Concrete with Non-Associated Damage Rule

by S. Yazdani, North Dakota State Univ, Fargo, United States,
S. Karnawat, North Dakota State Univ, Fargo, United States,
R. Lin, North Dakota State Univ, Fargo, United States,



Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract: The general formulation of a continuum theory for the inelasticity of concrete is derived. The internal theory of thermodynamics is used and the dissipation inequality is established. The formulation is capable of accommodating inelasticity due to microcrack extension and plastic flow. Damage and plasticity are obtained from a single loading surface which allows for the development of coupled theories between the two irreversible mechanisms present in concrete.

Subject Headings: Concrete | Inelasticity | Thermodynamics | Strength of materials | Cracking | Plastics

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