Fatigue crack propagation at concrete–concrete bi-material interfaces
Source abstract
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.
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Research context
OpenAlex topics: Rock Mechanics and Modeling · Ultrasonics and Acoustic Wave Propagation · Structural Behavior of Reinforced Concrete
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References (24)
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