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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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Chateau, Camille
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2021Densities of hemp shiv for building, part I: multiscale characterization
- 2020Additive Manufacturing of Anisotropic Concrete: a Flow-Based Pultrusion of Continuous Fibers in a Cementitious Matrixcitations
- 2020Microstructure, deformation and microcracking of a 3D printed composite
- 2020X‐ray tomographic observations of microcracking patterns in fibre‐reinforced mortar during tension stiffening testscitations
- 20203D detection and quantitative characterization of cracks in a ceramic matrix composite tube using X-ray computed tomographycitations
- 2019Characterisation and modelling of interfacial damage in fibre-reinforced concrete for 3D printing in constructioncitations
- 2019Analysis of the damage initiation in a SiC/SiC composite tube from a direct comparison between large-scale numerical simulation and synchrotron X-ray micro-computed tomographycitations
- 2019Experimental and micromechanical investigation on the mechanical and durability properties of recycled aggregates concretecitations
- 2019Experimental and micromechanical investigation on the mechanical and durability properties of recycled aggregates concretecitations
- 2019Phase field method for microcracking simulations in concrete microstructure models obtained from 3D microtomography images
- 2018DVC-based image subtraction to detect microcracking in lightweight concretecitations
- 2017Modeling interactions between bulk and interfacial cracking in concrete microstructures with the phase field method
- 2017Large-scale simulations of quasi-brittle microcracking in realistic highly heterogeneous microstructures obtained from micro CT imagingcitations
- 2017Modeling of Complex Microcracking in Quasi-Brittle Materials: Numerical Methods and Experimental Validationscitations
- 2017Effects of braiding angle on damage mechanisms in SiC/SiC composite tubes characterized by X-ray computed tomography
- 2017Modelling of microcracking in image-based models of highly heterogeneous materials using the phase field method
- 2016A phase-field method for computational modeling of interfacial damage interacting with crack propagation in realistic microstructures
- 2016Massively parallel FFT-based simulation to analyze the behavior of architected SiC/SiC composite tubes from synchrotron X-ray tomography
- 2016On the choice of parameters in the phase field method for simulating crack initiation with experimental validationcitations
- 2016On the choice of parameters in the phase field method for simulating crack initiation with experimental validationcitations
- 20163D experimental detection and characterization of microcracking in porous cement based materials
- 2015Micromechanical modeling of the elastic behavior of unidirectional CVI SiC/SiC compositescitations
- 2015On the role of in-plane damage mechanisms on the macroscopic behavior of SiC/SiC composites from complementary 2D and 3D in-situ investigations
- 2015A phase-field method for microcracking simulation in concrete microstructure models obtained from microtomography images
- 2015A phase-field method for computational modeling of interfacial damage interacting with crack propagation in realistic microstructures obtained by microtomographycitations
- 2015Phase field modeling of complex microcracking in voxel-based models of cementitious materials
- 2015A phase field method to simulate crack nucleation and propagation in strongly heterogeneous materials from direct imaging of their microstructurecitations
- 2014Modeling of damage in unidirectional ceramic matrix composites and multi-scale experimental validation on third generation SiC/SiC minicompositescitations
- 2011In-situ X-ray microtomography characterization of damage in SiC/SiC minicompositescitations
- 2010X-ray tomographic characterization of the macroscopic porosity of chemical vapor infiltration SIC/SIC composites: effects on the elastic behaviorcitations
- 2010Multiscale approach of mechanical behaviour of SiC/SiC composites : elastic behaviour at the scale of the tow
- 2010Experimental characterisation of damage in SiC/SiC minicompositescitations
- 2009Multiscale approach of mechanical behaviour of SiC/SiC composites : elastic behaviour at the scale of the tow
- 2009X-ray tomographic characterization of the macroscopic porosity of CVI SiC/SiC composites - Effects on the elastic behaviorcitations
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article
X-ray tomographic characterization of the macroscopic porosity of chemical vapor infiltration SIC/SIC composites: effects on the elastic behavior
Abstract
This paper focuses on the characterization of the macroporosity, the porosity among the tows, observed in chemical vapor infiltration composites and on its effect on the thermo-mechanical behavior. The experimental characterization of macroporosity is performed using an X-ray tomography technique. Numerical 3D images are used to describe the distribution of macroporosity with respect to the position of the plies. It is clearly established that the stacking of the plies has a significant effect on the porosity distribution. As a consequence for the micromechanical modelling, a unique element that contains only one ply is not representative of the porosity distribution and is not sufficient to evaluate the "effective" mechanical properties; several volume elements (VE), called "statistical volume elements (SVE)," with at least two plies per VE have to be used in order to account for the variability of the stacking of the plies. Finally, such SVE are directly extracted from the tomographic image and the "effective" elastic behavior is evaluated from the average of the "apparent" behavior evaluated on each SVE. In spite of their quite important size, the "apparent" behaviors evaluated for each SVE exhibit important fluctuations.