| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dalmas, Davy
French National Centre for Scientific Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2014Fragmentation and Limits to Dynamical Scaling in Viscous Coarsening: An Interrupted in situ X-Ray Tomographic Studycitations
- 2013Fragmentation and Limits to Dynamical Scaling in Viscous Coarsening: An Interrupted in situ X-Ray Tomographic Study
- 2013Damage mechanisms in the dynamic fracture of nominally brittle polymerscitations
- 2013Finite size effects on crack front pinning at heterogeneous planar interfaces: Experimental, finite elements and perturbation approachescitations
- 2012Mode III cleavage of a coin-shaped titanium implant in bone: effect of friction and crack propagationcitations
- 2012Understanding fast macroscale fracture from microcrack post mortem patternscitations
- 2011Glass strengthening by polymeric coatings: combined effect of mechanical properties and confinementcitations
- 2010Brittle/quasi-brittle transition in dynamic fracture: An energetic signaturecitations
- 2009Assessment of Microelastic Properties of Bone Using Scanning Acoustic Microscopy: A Face-to-Face Comparison with Nanoindentation
- 2007Quantitative AFM analysis of phase separated borosilicate glass surfaces
- 2005The mechanics of glass and functionalised glass surfaces
Places of action
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article
Brittle/quasi-brittle transition in dynamic fracture: An energetic signature
Abstract
Dynamic fracture experiments were performed in PMMA over a wide range of velocities and reveal that the fracture energy exhibits an abrupt 3-folds increase from its value at crack initiation at a well-defined critical velocity, below the one associated to the onset of micro-branching instability. This transition is associated with the appearance of conics patterns on fracture surfaces that, in many materials, are the signature of damage spreading through the nucleation and growth of microcracks. A simple model allows to relate both the energetic and fractographic measurements. These results suggest that dynamic fracture at low velocities in amorphous materials is controlled by the brittle/quasi-brittle transition studied here.