Skip to Main content Skip to Navigation
Journal articles

Nominally brittle cracks in inhomogeneous solids: from microstructural disorder to continuum-level scale

Jonathan Barés 1 Marina Barlet 1 Cindy L Rountree 1 Luc L Barbier 1 Daniel Bonamy 1, * 
* Corresponding author
1 SPHYNX - Systèmes Physiques Hors-équilibre, hYdrodynamique, éNergie et compleXes
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
Abstract : We analyze the intermittent dynamics of cracks in heterogeneous brittle materials and the roughness of the resulting fracture surfaces by investigating theoretically and numerically crack propagation in an elastic solid of spatially-distributed toughness. The crack motion splits up into discrete jumps, avalanches, displaying scale-free statistical features characterized by universal exponents. Conversely, the ranges of scales are non-universal and the mean avalanche size and duration depend on the loading microstructure and specimen parameters according to scaling laws which are uncovered. The crack surfaces are found to be logarithmically rough. Their selection by the fracture parameters is formulated in term of scaling laws on the structure functions measured on one-dimensional roughness profiles taken parallel and perpendicular to the direction of crack growth.
Document type :
Journal articles
Complete list of metadata

Cited literature [55 references]  Display  Hide  Download
Contributor : Dominique GIRARD Connect in order to contact the contributor
Submitted on : Thursday, October 6, 2016 - 5:10:00 PM
Last modification on : Monday, December 13, 2021 - 9:16:32 AM
Long-term archiving on: : Friday, February 3, 2017 - 5:24:10 PM


Files produced by the author(s)




Jonathan Barés, Marina Barlet, Cindy L Rountree, Luc L Barbier, Daniel Bonamy. Nominally brittle cracks in inhomogeneous solids: from microstructural disorder to continuum-level scale. Frontiers in Physics, Frontiers, 2014, 2, pp.70. ⟨10.3389/fphy.2014.00070⟩. ⟨cea-01377315⟩



Record views


Files downloads