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Fatigue crack propagation at concrete-concrete bi-material interfaces

Shah, Santosh G and Ray, Sonalisa and Kishen, Chandra JM (2014) Fatigue crack propagation at concrete-concrete bi-material interfaces. In: INTERNATIONAL JOURNAL OF FATIGUE, 63 . pp. 118-126.

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Official URL: http://dx.doi.org/10.1016/j.ijfatigue.2014.01.015

Abstract

This paper presents experimental and analytical studies on fatigue crack propagation in concrete-concrete cold jointed interface specimens. Beams of different sizes having jointed interface between two concretes with different elastic properties are tested under fatigue loading. The acoustic emission technique is used for monitoring the fatigue crack growth. It is observed that the interface having a higher moduli mismatch tends to behave in a brittle manner. The CMOD compliances at different loading cycles are measured and the equivalent crack lengths are determined from a finite element analysis. An analytical model for crack growth rate is proposed using the concepts of the dimensional analysis. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the ELSEVIER SCI LTD, ENGLAND
Keywords: Fatigue crack growth; Concrete-concrete interface; Bimaterial interface; Dimensional analysis
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Depositing User: Id for Latest eprints
Date Deposited: 11 May 2014 07:04
Last Modified: 11 May 2014 07:05
URI: http://eprints.iisc.ac.in/id/eprint/49066

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