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Prediction of incipient shear band trajectories in a thick wall cylinder explosion test

Gu, Y. and Ravichandran, G. (2005) Prediction of incipient shear band trajectories in a thick wall cylinder explosion test. Experimental Mechanics, 45 (5). pp. 447-450. ISSN 0014-4851.

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A simple but precise and physical mechanism-based mathematical expression is proposed to predict shear band trajectories in thick wall cylinders subject to external surrounding pressure. The expression is based on the Coulomb-Mohr fracture criterion and can be applied to various compression-sensitive materials, especially ceramics. The predicted result closely matches the experimental observations, which makes this method quite useful in testing material behavior. This expression also permits the extraction of the parameter μ in the Coulomb-Mohr criterion from experimental observations. Furthermore, no pre-assumptions or after-test measurement are necessary in order to carry out the prediction. The only two values needed to conduct the prediction are the initial inner radius and the friction coefficient μ. A comparison between the newly proposed model and existing theory is made to reveal their relations and demonstrate the effectiveness of the newly derived mathematical expression.

Item Type:Article
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Ravichandran, G.0000-0002-2912-0001
Additional Information:© 2005 Society for Experimental Mechanics. Received 06 December 2004; Revised 02 June 2005. The support provided by the Army Research Office (Dr. B. LaMattina, Program Manager) is gratefully acknowledged. We thank Drs. A. M. Rajendran and D. Templeton for their support and many fruitful discussions.
Funding AgencyGrant Number
Army Research Office (ARO)UNSPECIFIED
Subject Keywords:Thick wall cylinder; Coulomb-Mohr criterion; shear band
Issue or Number:5
Record Number:CaltechAUTHORS:20200127-111640366
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Official Citation:Gu, Y. & Ravichandran, G. Experimental Mechanics (2005) 45: 447.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:100942
Deposited By: Tony Diaz
Deposited On:28 Jan 2020 19:05
Last Modified:09 Mar 2020 13:19

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