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Average crack-front velocity during subcritical fracture propagation in a heterogeneous medium

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. http://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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevE.84.036104DOIArticle
http://link.aps.org/doi/10.1103/PhysRevE.84.036104PublisherArticle
http://pre.aps.org/abstract/PRE/v84/i3/e036104PublisherArticle
ORCID:
AuthorORCID
Ampuero, J. P.0000-0002-4827-7987
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
Funders:
Funding AgencyGrant Number
Agence Nationale pour la Recherche (ANR)SUPNAF
CNRS French-Norwegian PICSUNSPECIFIED
INSU CESSUR programUNSPECIFIED
Caltech Seismological LaboratoryUNSPECIFIED
Strasbourg UniversityUNSPECIFIED
Classification Code:PACS: 46.50.+a, 62.20.M-
Record Number:CaltechAUTHORS:20111003-094958190
Persistent URL:http://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:17 Sep 2015 22:08

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