| 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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Daouadji, Ali
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Topics
Publications (10/10 displayed)
- 2023Influence of Grain‐Scale Properties on Localization Patterns and Slip Weakening Within Dense Granular Fault Gougescitations
- 2021Effect of mechanical and geometrical properties on dynamic behavior of asymmetrical composite sandwich beam with viscoelastic core
- 2020Frequency- and angle-dependent scattering of a finite-sized meta-structure via the relaxed micromorphic modelcitations
- 2019Relaxed micromorphic broadband scattering for finite-size meta-structures -- a detailed development
- 2019Relaxed micromorphic broadband scattering for finite-size meta-structures - a detailed development
- 2018Low-and high-frequency Stoneley waves, reflection and transmission at a Cauchy/relaxed micromorphic interface
- 2018Low-and high-frequency Stoneley waves, reflection and transmission at a Cauchy/relaxed micromorphic interface
- 2018Damped dynamic response of strengthened beams by composite coats under moving force by FEM ; Réponse dynamique amortie des poutres renforcées par des couches en composites sous une force mobile en utilisant la MEF.
- 2018Quasi-static Incremental Behavior of Granular Materials: Elastic–Plastic Coupling and Micro-scale Dissipationcitations
- 2017Free and Forced Vibration of Beams Strengthened by Composite Coats Subjected to Moving Loadscitations
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article
Influence of Grain‐Scale Properties on Localization Patterns and Slip Weakening Within Dense Granular Fault Gouges
Abstract
ault zones are usually composed of a granular gouge, coming from the wear material of previous slips, which contributes to friction stability. When considering a mature enough fault zone that has already been sheared, different types of infill materials can be observed, from mineral cementation to matrix particles that can fill the remaining pore spaces between clasts and change the rheological and frictional behaviors of the gouge. We aim to understand and reproduce the influence of grain‐scale characteristics on slip mechanisms and gouge rheology (Riedel bands) by employing the discrete element method. A 2D‐direct shear model is considered with a dense assembly of small polygonal cells of matrix particles. A variation of gouge characteristics such as interparticle friction, gouge shear modulus or the number of particles within the gouge thickness leads to different Riedel shear band formation and orientation that has been identified as an indicator of a change in slip stability. Interpreting results with slip weakening theory, our simulated gouge materials with high interparticle friction or a high bulk shear modulus, increase the possible occurrence of dynamic slip instabilities (small nucleation length and high breakdown energy). They may give rise to faster earthquake ruptures.