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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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Melo, Francisco
University of Aveiro
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Structural Characterization and Magnetic Behavior Due to the Cationic Substitution of Lanthanides on Ferrite Nanoparticlescitations
- 2021The evaluation of von Mises stress field in bonded tiling ceramics as function of the elastic modulus of the tile-adhesive and joint grout mortarscitations
- 2020Mechanical properties and electrical surface charges of microfibrillated cellulose/imidazole-modified polyketone composite membranescitations
- 2020Mechanical properties and electrical surface charges of microfibrillated cellulose/imidazole-modified polyketone composite membranescitations
- 2020Assessing the thermal degradation of bonded joints in flat ceramic tiles of building facades by numerical and experimental dynamic analysiscitations
- 2020Numerical modelling of the asymmetric behaviour of concrete
- 2018Stress transfer and matrix-cohesive fracture mechanism in microfibrillated cellulose-gelatin nanocomposite filmscitations
- 2013Fracture dans les matériaux granulaires cohésifs.
- 2012Effect of cohesion and shear modulus on the stability of a stretched granular layer
- 2012Flexural fracturing of a cohesive granular layer
Places of action
Organizations | Location | People |
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article
Effect of cohesion and shear modulus on the stability of a stretched granular layer
Abstract
The main mechanism of the cellular pattern which forms at the surface of a thin layer of a cohesive granular material submitted to in-plane stretching has been identified as the "strain softening" arising from the features of grain-grain interactions. We perform measurements of the strain field associated with such structures by using a correlation image technique and additionally characterize the cohesion and shear modulus of the samples. We show that for high cohesion, the layer is fragile and the surface deformation is highly nonlinear, whereas at low cohesion, a smooth and linearly growing structure is observed as a function of external stretching. Analysis of the wavelength as a function of cohesion along with independent measurement of the shear modulus indicate that a simple model of strain softening is acceptable if a mechanism of cluster formation due to cohesion is taking place.