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Tension-Softening Properties for Concrete-Concrete Interfaces

Shah, Santosh G and Bhasya, V and Kishen, Chandra JM (2011) Tension-Softening Properties for Concrete-Concrete Interfaces. In: ACI Structural Journal, 108 (6). pp. 725-734.

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Official URL: http://www.concrete.org/PUBS/JOURNALS/OLJDetails.a...

Abstract

The tension-softening parameters for different concrete-concrete interfaces are determined using the bimaterial cracked hinge model. Beams of different sizes having a jointed interface between two different strengths of concrete are tested under three-point bending (TPB). The load versus crack mouth opening displacement (CMOD) results are used to obtain the stress-crack opening relation through an inverse analysis. In addition, the fracture energy, tensile strength, and modulus of elasticity are also computed from the inverse analysis. The fracture properties are used in the nonlinear fracture mechanics analysis of a concrete patch-repaired beam to determine its load-carrying capacity when repaired with concrete of different strengths.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Concrete Institute.
Keywords: concrete interface;crack-hinge model;fracture energy;patch repair;tension softening
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 21 Dec 2011 09:37
Last Modified: 21 Dec 2011 09:37
URI: http://eprints.iisc.ernet.in/id/eprint/42617

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