Mesoscopic modelling of strain localization in concrete


  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Mesoscopic modelling of strain localization in concrete

Author(s): Ł. Skarżyński, J. Tejchman

Publication: KILW

Volume: 55

Issue: 4

Appears on pages(s): 503-526

Keywords: characteristic length, heterogeneous material, Representative Volume Element (RVE), damagemechanics, meso-scale

Date: 10/1/2009

The paper deals with strain localization in concrete subjected to uniaxial tension. The material was described at the meso-scale as a random heterogeneous three-phase one. All three phases were modelled with an isotropic scalar damage constitutive model. To ensure the mesh-independent numerical results, to preserve the well-posedness of the boundary value problem, and to describe properly strain localization in concrete, the model was enhanced by a characteristic length of micro-structure by means of the non-local theory. The effect of a specimen size, random distribution of aggregate, aggregate density, characteristic length and non-locality range on both strain localization and stress-strain curves was numerically investigated. The existence of a representative volume element (RVE) was discussed.

Polish Academy of Sciences, International Partner Access.

View Resource »