| 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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Barés, Jonathan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2020Development of new biocompatible 3D printed graphene oxide-based scaffoldscitations
- 2020Investigation of polymer-derived Si–(B)–C–N ceramic/reduced graphene oxide composite systems as active catalysts towards the hydrogen evolution reactioncitations
- 2020Boron nitride-based nano-biocomposites: Design by 3D printing for bone tissue engineeringcitations
- 2019Shear-Jammed, Fragile, and Steady States in Homogeneously Strained Granular Materialscitations
- 2015Effect of the porosity on the fracture surface roughness of sintered materials: From anisotropic to isotropic self-affine scalingcitations
- 2013Failure of brittle heterogeneous materials, Intermittency, Crackling and Seismicity
- 2012Low Velocity Surface Fracture Patterns in Brittle Material: A Newly Evidenced Mechanical Instabilitycitations
- 2012LOW VELOCITY SURFACE FRACTURE PATTERNS IN BRITTLE MATERIAL: A NEWLY EVIDENCED MECHANICAL INSTABILITYcitations
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article
Low Velocity Surface Fracture Patterns in Brittle Material: A Newly Evidenced Mechanical Instability
Abstract
<jats:p>The occurrence of various instabilities at very high speed is well known to occur in brittle fracture and significant advances have recently been obtained in the understanding of their origin. On the other hand, low speed brittle crack propagation under pure tension loading (mode I) is usually thought to yield smooth crack surfaces. The experimental investigation reported here questions this statement. Steady cracks were driven in brittle glassy polymers (PolyMethyl Methacrylate - PMMA) using a wedge-splitting geometry over a wide range of low velocities (10<jats:sup>-9</jats:sup>-10<jats:sup>-1</jats:sup>m/s). Three distinct patterns can be observed on the post-mortem fracture surfaces as crack velocity decreases: perfectly smooth at the highest speed, regularly fragmented at intermediate speed and macroscopically rough at the lowest speed. The transition between the two latter is reminiscent of chaotic transition.<jats:sup>a</jats:sup>hattali.lamine@gmail.com,<jats:sup>b</jats:sup>jonathan.bares@cea.fr,<jats:sup>c</jats:sup>ponson@caltech.edu,<jats:sup>d</jats:sup>daniel.bonamy@cea.fr,</jats:p>