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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/21548
Title: Role of aggregate debonding on the tensile response of concrete: A micromechanical approach
Authors: Dutta, Sudakshina
Chandra Kishen J.M.
Published in: Engineering Fracture Mechanics
Abstract: A micromechanics based model has been developed to understand the effect of debonding of coarse aggregates from mortar on the macroscopic behavior of concrete under equibiaxial and uniaxial tension. Concrete is modeled as a two phase composite at the meso-scale. The interface is characterized by a bilinear cohesive law with softening. The elastic solutions of the stress and displacement fields due to the separation of the aggregate from the mortar matrix are computed at the meso-level. A homogenization scheme is implemented to obtain the overall behavior at the macro-scale. Factors such as aggregate size, aggregate content, elastic properties of the constituents and the interface properties are seen to affect the macroscopic response of concrete. ¬© 2018 Elsevier Ltd
Citation: Engineering Fracture Mechanics, 199: 518-531
URI: https://doi.org/10.1016/j.engfracmech.2018.06.015
http://repository.iitr.ac.in/handle/123456789/21548
Issue Date: 2018
Publisher: Elsevier Ltd
Keywords: Debonding
Homogenization
Interface
Meso-scale
Micromechanics
ISSN: 137944
Author Scopus IDs: 55098724900
6506178790
Author Affiliations: Dutta, S., Department of Civil Engineering, Indian Institute of Science, Bangalore, 560 012, India
Chandra Kishen, J.M., Department of Civil Engineering, Indian Institute of Science, Bangalore, 560 012, India
Corresponding Author: Chandra Kishen, J.M.; Department of Civil Engineering, India; email: chandrak@iisc.ac.in
Appears in Collections:Journal Publications [CE]

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