Prediction of Fatigue Life in Plain Concrete Using Entropy Production

Fathima, Pervaiz KM and Kishen, Chandra JM (2015) Prediction of Fatigue Life in Plain Concrete Using Entropy Production. In: JOURNAL OF ENGINEERING MECHANICS, 141 (7).

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Abstract

An energy approach within the framework of thermodynamics is used to model the fatigue process in plain concrete. Fatigue crack growth is an irreversible process associated with an irreversible entropy gain. A closed-form expression for entropy generated during fatigue in terms of energy dissipated is derived using principles of dimensional analysis and self-similarity. An increase in compliance is considered as a measure of damage accumulated during fatigue. The entropy at final fatigue failure is shown to be independent of loading and geometry and is proposed as a material property. A relationship between energy dissipated and number of cycles of fatigue loading is obtained. (C) 2015 American Society of Civil Engineers.

Item Type:	Journal Article
Publication:	JOURNAL OF ENGINEERING MECHANICS
Publisher:	ASCE-AMER SOC CIVIL ENGINEERS
Additional Information:	Copy right for this article belongs to the ASCE-AMER SOC CIVIL ENGINEERS, 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
Keywords:	Entropy; Energy dissipated; Thermodynamics; Fatigue crack; Concrete
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	26 Aug 2015 06:42
Last Modified:	26 Aug 2015 06:42
URI:	http://eprints.iisc.ac.in/id/eprint/52250

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