A damage-plasticity interface approach to the meso-scale modelling of concrete subjected to cyclic compressive loading

Grassl, P. and Rempling, R. (2008) A damage-plasticity interface approach to the meso-scale modelling of concrete subjected to cyclic compressive loading. Engineering Fracture Mechanics, 75, pp. 4804-4818. (doi:10.1016/j.engfracmech.2008.06.005)

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Publisher's URL: http://dx.doi.org/10.1016/j.engfracmech.2008.06.005

Abstract

Concrete is characterised by stiff inclusions in a soft matrix separated by weak interfacial transition zones (ITZs). Subjected to cyclic loading, this material exhibits a strongly nonlinear response, which is characterised by the occurrence of hysteresis loops. Furthermore, for cyclic loading, failure may occur before the equivalent strength for monotonic loading is reached. The present work investigates, whether the occurrence of permanent displacements in different phases of the meso-structure of quasi-brittle heterogeneous materials, such as concrete, leads to damage evolution during repeated loading. A new three-dimensional interface model based on a combination of damage mechanics and the theory of plasticity is proposed, which allows one to control the ratio of permanent and total inelastic displacements. The model is based on only a few material parameters, which can be directly determined by experiments. The interface model is applied to the plane-stress analysis of an idealised heterogeneous material with cylindrical inclusions and ITZs subjected to cyclic compressive stresses.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Grassl, Dr Peter
Authors: Grassl, P., and Rempling, R.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Engineering Fracture Mechanics
ISSN:0013-7944

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