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A model for coupled inelastic deformation and anisotropic damage behaviour of concrete
Author(s) -
Monnamitheen Abdul Gafoor A. H.,
Dinkler Dieter
Publication year - 2017
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201710090
Subject(s) - isotropy , anisotropy , cracking , structural engineering , representation (politics) , tension (geology) , materials science , compression (physics) , deformation (meteorology) , mechanics , computer science , physics , composite material , engineering , optics , politics , political science , law
The present paper describes a simplified model for isotropic damage developed on continuum damage theory. The model characterizes the distinct behaviour of concrete in tension and compression using a unified equivalent strain, which governs the growth of damage. In reality, concrete exhibits distributed micro‐cracking pattern under multi‐directional loads. Therefore, the model is extended to incorporate damage induced anisotropy inherently for a reliable representation of damage, and captures the direction of possible damage evolution. Moreover, the model takes the inelastic behaviour of material into account based on the extended version of Lubliner failure criterion. The model is validated with experimental data. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)