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Crack propagation in a linearly viscoelastic strip

Mueller, H. K. and Knauss, W. G. (1971) Crack propagation in a linearly viscoelastic strip. Journal of Applied Mechanics, 38 (2). pp. 483-488. ISSN 0021-8936. doi:10.1115/1.3408801.

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The tip velocity of a crack propagating through a viscoelastic material depends on geometry, applied load and its history, and material properties. A consideration of the work done by the unloading tractions at the crack tip shows that, for a large crack propagating through an infinitely long strip under constant lateral strain, the rate of propagation can be calculated from a knowledge of the intrinsic fracture energy (a material constant), the material creep compliance, and an additional size parameter. This parameter vanishes from the analysis if the material is elastic, and the familiar instability criterion is obtained in this case. Comparison with experimental data is provided and the consequences of step loadings are examined.

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Additional Information:Copyright © 1971 by ASME. Manuscript received by ASME Applied Mechanics Division, July 16, 1969; final revision, June 1, 1970. Paper No. 71-APM-B. This work represents part of a PhD thesis submitted to the California Institute of Technology. The authors gratefully acknowledge support of the National Aeronautics and Space Administration under Research Grant NsG-172-60, GALCIT 120.
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Issue or Number:2
Record Number:CaltechAUTHORS:20141223-103711656
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Official Citation:Mueller H. K., Knauss W. G. Crack Propagation in a Linearly Viscoelastic Strip J. Appl. Mech. 38(2), 483-488 (1971) (6 pages); doi:10.1115/1.3408801
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53144
Deposited By: George Porter
Deposited On:23 Dec 2014 18:51
Last Modified:10 Nov 2021 19:48

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