Lengliné, Olivier and Toussaint, Renaud and Schmittbuhl, Jean and Elkhoury, Jean E. and Ampuero, J. P. and Tallakstad, Ken Tore and Santucci, Stéphane and Måløy, Knut Jørgen (2011) Average crack-front velocity during subcritical fracture propagation in a heterogeneous medium. Physical Review E, 84 (3). Art. No. 036104. ISSN 1539-3755. doi:10.1103/PhysRevE.84.036104. https://resolver.caltech.edu/CaltechAUTHORS:20111003-094958190
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Abstract
We study the average velocity of crack fronts during stable interfacial fracture experiments in a heterogeneous quasibrittle material under constant loading rates and during long relaxation tests. The transparency of the material (polymethylmethacrylate) allows continuous tracking of the front position and relation of its evolution to the energy release rate. Despite significant velocity fluctuations at local scales, we show that a model of independent thermally activated sites successfully reproduces the large-scale behavior of the crack front for several loading conditions.
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| Additional Information: | © 2011 American Physical Society. Received 16 February 2011; revised manuscript received 15 June 2011; published 9 September 2011. We acknowledge Alain Steyer for technical support. The project was supported by a French ANR RiskNat SUPNAF grant, by a CNRS French-Norwegian PICS, and by the INSU CESSUR program. J.E.E. was supported by the Caltech Seismological Laboratory. K.J.M. was partly supported by a visiting grant from Strasbourg University. | ||||||||||||
| Group: | Seismological Laboratory | ||||||||||||
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| Issue or Number: | 3 | ||||||||||||
| Classification Code: | PACS: 46.50.+a, 62.20.M- | ||||||||||||
| DOI: | 10.1103/PhysRevE.84.036104 | ||||||||||||
| Record Number: | CaltechAUTHORS:20111003-094958190 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20111003-094958190 | ||||||||||||
| Official Citation: | Average crack-front velocity during subcritical fracture propagation in a heterogeneous medium Olivier Lengliné, Renaud Toussaint, Jean Schmittbuhl, Jean E. Elkhoury, J. P. Ampuero, Ken Tore Tallakstad, Stéphane Santucci, and Knut Jørgen Måløy Published 9 September 2011 (13 pages) 036104 | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 25520 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||||
| Deposited On: | 03 Oct 2011 17:19 | ||||||||||||
| Last Modified: | 09 Nov 2021 16:34 |
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