| 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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Pasternak, Elena
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Topics
Publications (15/15 displayed)
- 2023Implication of Different Types of Post-peak Behaviour in Lateral Direction on Failure of Class II Rocks in Uniaxial Compressioncitations
- 2022Possible mechanism of spallation in rock samples under uniaxial compressioncitations
- 2019Effective properties of layered auxetic hybridscitations
- 2017Behavior of Extreme Auxetic and Incompressible Elastic Materialscitations
- 2017Extracting real-crack properties from non-linear elastic behaviour of rockscitations
- 2017Transitional negative stiffness and numerical modelling of failure of particulate material
- 2017Extracting shear and normal compliances of crack-like defects from pressure dependences of elastic-wave velocitiescitations
- 2016Wave propagation in materials with negative Cosserat shear moduluscitations
- 2016Deformation analysis of reinforced-core auxetic assemblies by close-range photogrammetrycitations
- 2016Thermal stresses in hybrid materials with auxetic inclusionscitations
- 2015Negative Poisson's ratio in hollow sphere materialscitations
- 2015Hybrid materials with negative Poisson's ratio inclusionscitations
- 2007Percolation mechanism of failure of a planar assembly of interlocked osteomorphic elementscitations
- 2006Cracks of higher modes in Cosserat continuacitations
- 2004On the possibility of elastic strain localisation in a faultcitations
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article
Hybrid materials with negative Poisson's ratio inclusions
Abstract
© 2015 Elsevier Ltd. All rights reserved. We consider hybrid materials consisting of auxetic (material with negative Poisson's ratio) and non-auxetic phases. The auxetic phase is represented by either spherical or cubic inclusions. We analyse the effective characteristics (the Young's and shear moduli and the Poisson's ratio) computed using either the differential scheme for the effective moduli of composites or the direct finite element simulations. The results are verified through Hashin-Shtrikman bounds. We demonstrate that by creating hybrids from auxetic and non-auxetic phases one can obtain considerable increase in stiffness over the stiffnesses of the phases. The stiffening effect is controlled by the value of the Poisson's ratios of the phases, shape of the auxetic inclusions and their concentration. Depending upon the concentration, the hybrid can be made both auxetic and non-auxetic. Even when the inclusions are cubic the hybrid is still nearly isotropic; it becomes truly orthotropic only when the Poisson's ratio of the auxetic phase is very close to the thermodynamic limit of -1. These findings can be applied directly in designing a new class of hybrid materials with enhanced stiffness.