Search Results - "ROLLAND DU ROSCOAT, S"

Statistical analysis of the crack sensitivity of fiber networks by Isaksson, P., Dumont, P.J.J., Rolland du Roscoat, S.

“…Fracturing two-dimensional random fiber networks of different densities (porosities) were statistically analyzed using both high-resolution finite element…”
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3-D image-based numerical computations of snow permeability: links to specific surface area, density, and microstructural anisotropy by Calonne, N, Geindreau, C, Flin, F, Morin, S, Lesaffre, B, Rolland du Roscoat, S, Charrier, P

“…We used three-dimensional (3-D) images of snow microstructure to carry out numerical estimations of the full tensor of the intrinsic permeability of snow (K)…”
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Study of a temperature gradient metamorphism of snow from 3-D images: time evolution of microstructures, physical properties and their associated anisotropy by Calonne, N, Flin, F, Geindreau, C, Lesaffre, B, Rolland du Roscoat, S

“…We carried out a study to monitor the time evolution of microstructural and physical properties of snow during temperature gradient metamorphism: a snow slab…”
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Application of synchrotron X-ray microtomography for visualizing bacterial biofilms 3D microstructure in porous media by Rolland du Roscoat, S., Martins, J.M.F., Séchet, P., Vince, E., Latil, P., Geindreau, C.

“…ABSTRACT The development of reliable models to accurately predict biofilm growth in porous media relies on a good knowledge of the temporal evolution of…”
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A fibrous cellulose paste formulation to manufacture structural parts using 3D printing by extrusion by Thibaut, C., Denneulin, A., Rolland du Roscoat, S., Beneventi, D., Orgéas, L., Chaussy, D.

“…[Display omitted] An optimized paste based on short natural cellulose fibers combined with carboxymethyl cellulose at a high dry content (42 wt.%) was…”
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Advanced analysis of the bias-extension of woven fabrics with X-ray microtomography and Digital Volume Correlation by Stamati, O., Orgéas, L., Rolland du Roscoat, S., Lhuissier, P., Dumont, P.J.J., Martoïa, F.

“…The bias-extension test is widely used to study the mechanics of woven fabrics undergoing large deformation. Standard analyses focus on the in-plane shear…”
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A method to quantify the 3D microstructure of fibrous materials containing mineral fillers using X-ray microtomography: application to paper materials by du Roscoat, S. Rolland, Bloch, J.-F., Caulet, P.

“…This article proposed and validated an original and automatic method based on synchrotron X-ray microtomography to characterise non-destructively, in 3D, the…”
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Fatigue mechanisms of a closed cell elastomeric foam: A mechanical and microstructural study using ex situ X-ray microtomography by Aimar, C., Orgéas, L., Rolland du Roscoat, S., Bailly, L., Ferré Sentis, D.

“…The degradation of mechanical properties of closed-cell elastomeric foams in fatigue and its link with the cellular structure is still poorly understood. To…”
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Entangled single-wire NiTi material: A porous metal with tunable superelastic and shape memory properties by Gadot, B., Riu Martinez, O., Rolland du Roscoat, S., Bouvard, D., Rodney, D., Orgéas, L.

“…[Display omitted] NiTi porous materials with unprecedented superelasticity and shape memory were manufactured by self-entangling, compacting and heat treating…”
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Air-drying of 3D printed part made of ligno-cellulosic fibres: 3D real-time monitoring combining sub-minute laboratory X-ray microtomography and digital volume correlation by Murtaza, H., Rolland du Roscoat, S., Lhuissier, P., Salvo, L., Orgéas, L., Thibaut, C., Denneulin, A., Chaussy, D., Beneventi, D.

“…3D cheap, lightweight and robust cellulosic parts can be obtained via extrusion of a cellulosic aqueous paste followed by air-drying. During the air-drying…”
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Lubricated compression and X-ray microtomography to analyse the rheology of a fibre-reinforced mortar by Chalencon, F., Orgéas, L., Dumont, P. J. J., Foray, G., Cavaillé, J. -Y., Maire, E., Rolland du Roscoat, S.

“…In this work, the microstructure and the rheology of a glass-fibre-reinforced fresh mortar were studied. Various fibre contents and aspect ratios and two types…”
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Influence of the local mass density variation on the fracture behavior of fiber network materials by Krasnoshlyk, V., Roscoat, S. Rolland du, Dumont, P.J.J., Isaksson, P.

“…The fracture process in two fiber network materials, a low- and a high-density paper, is analyzed experimentally and numerically. The high-density paper is…”
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New opportunities for 3D materials science of polycrystalline materials at the micrometre lengthscale by combined use of X-ray diffraction and X-ray imaging by Ludwig, W., King, A., Reischig, P., Herbig, M., Lauridsen, E.M., Schmidt, S., Proudhon, H., Forest, S., Cloetens, P., Roscoat, S. Rolland du, Buffière, J.Y., Marrow, T.J., Poulsen, H.F.

“…Non-destructive, three-dimensional (3D) characterization of the grain structure in mono-phase polycrystalline materials is an open challenge in material…”
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Fibre kinematics in dilute non-Newtonian fibre suspensions during confined and lubricated squeeze flow: Direct numerical simulation and analytical modelling by Laurencin, T., Laure, P., Orgéas, L., Dumont, P.J.J., Silva, L., Rolland du Roscoat, S.

“…•The dumbbell modelling with wall contact can be extended to shear thinning fluid.•The analytical solutions are recovered and confirmed by numerical…”
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3D in situ observations of the compressibility and pore transport in Sheet Moulding Compounds during the early stages of compression moulding by Ferré Sentis, D., Orgéas, L., Dumont, P.J.J., Rolland du Roscoat, S., Sager, M., Latil, P.

“…The properties of Sheet Moulding Compounds (SMCs) are altered by their porosity induced during the manufacturing or moulding of these prepregs. To characterise…”
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Finding fibres and their contacts within 3D images of disordered fibrous media by Viguié, J., Latil, P., Orgéas, L., Dumont, P.J.J., Rolland du Roscoat, S., Bloch, J.-F., Marulier, C., Guiraud, O.

“…Modelling physical and mechanical properties of fibrous materials requires a relevant description of their microstructures, e.g. the descriptors of fibres and…”
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Crack growth in planar elastic fiber materials by Isaksson, P., Dumont, P.J.J., Rolland du Roscoat, S.

“…Particularly attention is here given to crack growth in opening mode in fiber networks. Low- and high-density cellulose fiber materials are used in synchrotron…”
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Towards the 3D in situ characterisation of deformation micro-mechanisms within a compressed bundle of fibres by Latil, P., Orgéas, L., Geindreau, C., Dumont, P.J.J., Rolland du Roscoat, S.

“…The present study provides original experimental data concerning the evolution of the microstructure of a bundle of fibres during its deformation. For that…”
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Contribution of synchrotron X-ray holotomography to the understanding of liquid distribution in a medium during liquid aerosol filtration by Charvet, A., Rolland Du Roscoat, S., Peralba, M., Bloch, J.F., Gonthier, Y.

“…The three-dimensional structure of a fibrous filter determines its behaviour during filtration, such as the obtained pressure drop, the fractional efficiency…”
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Estimation of microstructural properties from synchrotron X-ray microtomography and determination of the REV in paper materials by Rolland du Roscoat, S., Decain, M., Thibault, X., Geindreau, C., Bloch, J.-F.

“…The porosity and specific surface areas of four industrial paper materials were determined from synchrotron X-ray microtomography. The porosity profile within…”
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