Elastoplastic Damage Behavior of a Mortar Subjected to Compression and Desiccation
- 1 April 2007
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Engineering Mechanics
- Vol. 133 (4), 464-472
- https://doi.org/10.1061/(asce)0733-9399(2007)133:4(464)
Abstract
This paper deals with experimental investigation and numerical modeling of drying effects on the mechanical behavior of cement-based materials. First, the main results from an experimental study on the mechanical behavior (failure strength, induced damage, and plastic deformation) of a mortar subjected to the desiccation process are presented. Then, a coupled elastoplastic damage model is proposed to describe the mechanical behavior of cement-based materials subjected to tensile and compressive stresses. A particular emphasis is put on the pressure sensitivity of plastic flow and damage evolution. Capillary effects on mechanical behavior due to desiccation have been taken into account in the framework of partially saturated porous media. Finally, numerical simulations and experimental data are compared in order to verify the capacity of the model to reproduce the basic characteristics of the mortar in saturated and unsaturated conditions.Keywords
This publication has 8 references indexed in Scilit:
- Effects of desiccation on mechanical behaviour of concreteCement and Concrete Composites, 2005
- Triaxial mechanical behaviour of mortar: Effects of dryingCement and Concrete Research, 2004
- Experimental characterisation of the drying effect on uniaxial mechanical behaviour of mortarMaterials and Structures, 2004
- Study of the Behavior of Concrete under Triaxial CompressionJournal of Engineering Mechanics, 2002
- Stress equivalence principle for saturated porous mediaComptes Rendus Mecanique, 2002
- A Course on Damage MechanicsPublished by Springer Science and Business Media LLC ,1992
- An elastoplastic constitutive model for concreteInternational Journal of Solids and Structures, 1988
- Micromechanics of defects in solidsMechanics of Elastic and Inelastic Solids, 1987