FraMCoS 5 2004 Vail, Colorado, USA

An Open System Approach Towards the Simulation of Chemomechanically Induced Concrete Failure

The present contribution aims at deriving a chemomechanical damage model within the framework of open system thermodynamics. The governing equations, which are essentially characterized through the balance of mass and momentum of the chemical reactant, are discretized with the help…

First page of: An Open System Approach Towards the Simulation of Chemomechanically Induced Concrete Failure
Year 2004
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Abstract

The present contribution aims at deriving a chemomechanical damage model within the framework of open system thermodynamics. The governing equations, which are essentially characterized through the balance of mass and momentum of the chemical reactant, are discretized with the help of the finite element method. The central idea is the reformulation of the classical damage variable in terms of the non–constant reference density, which is then introduced as nodal degree of freedom next to the deformation it- self. The basic features of the derived model will be discussed with the help of selected computational examples.