9 results on '"Schmitt, Nicolas"'
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2. Thermal treatment influence on the crystalline microstructure of compacted PTFE
- Author
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Guenoun, Gabriel, Schmitt, Nicolas, Régnier, Gilles, Schmitt, Nicolas, Saint-Gobain Recherche (SGR), SAINT-GOBAIN, Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies, and HESAM Université (HESAM)-HESAM Université (HESAM)
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[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] - Abstract
International audience; The anisothermal crystallization behavior of PTFE is investigated using differential scanning calorimetry (DSC). Special attention is paid on the existence of a secondary crystallization. Results show that anisotherm crystallization kinetics may be simulated by a modified Hillier's model based on Ozawa’s formalism.
- Published
- 2017
3. Numerical procedure for the biomechanical study of the restored teeth
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Shindo, Kyo, Vennat, Elsa, Schmitt, Nicolas, Morentin, Pascal, Schmitt, Nicolas, CentraleSupélec, Laboratoire de mécanique des sols, structures et matériaux (MSSMat), CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)
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[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[SDV.IB.BIO] Life Sciences [q-bio]/Bioengineering/Biomaterials ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2016
4. Identification of the heat transfer parameters of the cold pressed PTFE at different void ratios
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Sciuti, Vinicius, Angélico, Ricardo, Schmitt, Nicolas, Canto, Rodrigo Bresciani, Universidade Federal de São Carlos [São Carlos] (UFSCar), Escola de Engenharia de São Carlos (EESC-USP), Universidade de São Paulo = University of São Paulo (USP), Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Universidade de São Paulo (USP), and Schmitt, Nicolas
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[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2013
5. Heat transfer analyses of thermoplastic composites welding assembly process
- Author
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Angélico, Ricardo, Tita, Volnei, Schmitt, Nicolas, Billardon, René, Schmitt, Nicolas, Escola de Engenharia de São Carlos (EESC-USP), Universidade de São Paulo (USP), Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), and Universidade de São Paulo = University of São Paulo (USP)
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[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2013
6. Experimental and Numerical Investigation of Damage in Diesel Particulate Filter: from material scale to filter scale
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Latouchent, Guillaume, Darcy, Pierre, Schmitt, Nicolas, Benallal, Ahmed, Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Technocentre Renault [Guyancourt], RENAULT, and Schmitt, Nicolas
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[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] - Abstract
International audience; Diesel Particulate Filter (DPF) permits filtration and soot trapping into a porous ceramic. Periodically, soot is burned to ensure the proper engine operating conditions. In bad controlled on-line regeneration, severe thermal stresses develop which may create micro cracks and macro cracks and loss of filtration efficiency.The first part of this communication deals with a mechanical characterization of recrystallized SiC DPF samples. The tensile behavior of this cellular structure is characterized at room temperature by three-point bend tests performed on DPF samples. Tests are performed on new and aged samples, the aged material showing a notable different microstructure. The main results obtained during this experimental investigation are stated.The second part focuses on the analysis of a series of DPF samples damaged during laboratory bench tests, the main objective being to establish a correlation between thermal gradients experienced by the DPF and the density of density of the sample. Observations made with SEM coupled with EDS as well as X-ray Computed Tomography (CT) permitted to exhibit several types of degradation (microcracks, cracks, holes due to phase changes, etc.).In the last part, the experimental results are compared with first numerical simulation of thermomechanical stresses occurring in the cellular structure of part of the filter. The thermal field applied in the mechanical analysis is obtained using both measurements and computed data from a previously described DPF regeneration coupled model (heat transfer, mass transfer, chemical reactions). An attempt is made to correlate computed maximal stress location and cracking observations on samples.
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- 2012
7. Comportement mécanique d'un assemblage prothétique dentaire
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Kyo Shindo, Elsa Vennat, Laurent Tapie, Pascal Morenton, Norman Chiche, Nicolas Schmitt, Schmitt, Nicolas, Association Française de Mécanique, Laboratoire de mécanique des sols, structures et matériaux (MSSMat), CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Unité de Recherche Biomatériaux Innovants et Interfaces (URB2i - EA 4462), Université Paris Descartes - Paris 5 (UPD5)-Université Paris 13 (UP13), Laboratoire Génie Industriel - EA 2606 (LGI), CentraleSupélec, Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Service irevues, irevues, Université Paris 13 (UP13)-Université Paris Descartes - Paris 5 (UPD5), and Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec
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[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[SDV.IB.BIO] Life Sciences [q-bio]/Bioengineering/Biomaterials ,biomécanique ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,prothèses ,restauration dentaire ,[PHYS.MECA]Physics [physics]/Mechanics [physics] ,[PHYS.MECA] Physics [physics]/Mechanics [physics] ,[SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials ,ComputingMilieux_MISCELLANEOUS ,simulation numérique par éléments finis - Abstract
Colloque avec actes et comité de lecture. Internationale.; International audience; Le but de cette étude est d'étudier le comportement mécanique d'un assemblage prothétique dentaire (comportant une prothèse dentaire ainsi que son support de fixation au sein de la mâchoire). Nous étudierons ainsi par le biais d'une étude numérique l'influence des paramètres de conception sur le comportement de l'assemblage considéré.
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- 2015
8. Measurement of the volume expansion of SiC refractories induced by molten salt corrosion
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M.L. Bouchetou, Pascal Prigent, E. de Bilbao, Jacques Poirier, Eric Blond, Charyar Mehdi-Souzani, Nicolas Schmitt, Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI), Université d'Orléans (UO)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Universitaire de Recherche en Production Automatisée (LURPA), Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), F2ME, Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes, Mécanique et Energétique (PRISME), Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges)-Université d'Orléans (UO)-Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges)-Université d'Orléans (UO), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11), Université d'Orléans (UO)-Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges)-Université d'Orléans (UO)-Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges)-Université d'Orléans (UO), Schmitt, Nicolas, Université d'Orléans (UO)-Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges), and Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)
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SiC ,Materials science ,Pellets ,volume expansion ,Salt (chemistry) ,refractories ,02 engineering and technology ,01 natural sciences ,Corrosion ,[SPI.MAT]Engineering Sciences [physics]/Materials ,[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,Phase (matter) ,0103 physical sciences ,Coupling (piping) ,Ceramic ,Molten salt ,Refractory (planetary science) ,ComputingMilieux_MISCELLANEOUS ,010302 applied physics ,chemistry.chemical_classification ,Metallurgy ,021001 nanoscience & nanotechnology ,chemistry ,visual_art ,visual_art.visual_art_medium ,0210 nano-technology - Abstract
International audience; Corrosion tests of oxide-bonded SiC-based refractory cylinders with molten salts (mainly CaSO4, K2SO4) were performed at high temperature to enable better understanding of the corrosion mechanisms operating in these materials. Salt pellets were placed on the upper surface of small refractory cylinders. After they had been melted, the corrosive product soaked into the pores of the refractory cylinders and partially corroded the SiC phase. SEMEDS analyses showed thatCaSiO3 was the mainnewphase formed, growing from SiC aggregates into the pores.Theshapes of the initial and corroded cylinders were measured at room temperature using a 3D coordinate measuring machine equipped with a laser-plane sensor. These measurements enabled monitoring of the evolution of the residual radial deformation versus the depth from the surface in contact with the salt pellets, and consequently the characterisation of the local volume expansion induced by the phase change. Coupling SEM-EDS analyses with 3D digitising revealed the link between the corrosion product and the volume expansion.
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- 2013
9. Thermomechanical computations of refractory linings accounting for swelling induced by chemical reaction
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Emmanuel de Bilbao, Tarek Merzouki, Nicolas Schmitt, Alain Gasser, Eric Blond, Schmitt, Nicolas, Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes, Mécanique et Energétique (PRISME), Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges)-Université d'Orléans (UO), Laboratoire de Mécanique et Technologie (LMT), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI), Université d'Orléans (UO)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Université d'Orléans (UO)-Ecole Nationale Supérieure d'Ingénieurs de Bourges (ENSI Bourges)
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Materials science ,02 engineering and technology ,010502 geochemistry & geophysics ,021001 nanoscience & nanotechnology ,01 natural sciences ,Chemical reaction ,[PHYS.MECA.MEMA]Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,[PHYS.MECA.MEMA] Physics [physics]/Mechanics [physics]/Mechanics of materials [physics.class-ph] ,medicine ,Composite material ,Swelling ,medicine.symptom ,0210 nano-technology ,ComputingMilieux_MISCELLANEOUS ,Refractory (planetary science) ,0105 earth and related environmental sciences - Abstract
International audience
- Published
- 2013
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