Crack propagation in a linearly viscoelastic strip
- Creators
- Mueller, H. K.
- Knauss, W. G.
Abstract
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.
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.Attached Files
Published - 389157.pdf
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Additional details
- Eprint ID
- 53144
- Resolver ID
- CaltechAUTHORS:20141223-103711656
- NASA
- NsG-172-60
- Created
-
2014-12-23Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- GALCIT