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Academic literature on the topic 'Essai de frottement unidirectionnel'
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Journal articles on the topic "Essai de frottement unidirectionnel"
Fellah, Mamoun, Linda Aissani, Alain Iost, Amel Zairi, Alex Montagne, and Alberto Mejias. "Comportement à l’usure et au frottement de deux biomatériaux AISI 316L et Ti-6Al-7Nb pour prothèse totale de hanche." Matériaux & Techniques 106, no. 4 (2018): 402. http://dx.doi.org/10.1051/mattech/2018051.
Full textJaber, Jana, Marianne Conin, Olivier Deck, Olivier Godard, and Samuel Kenzari. "Essai préliminaire de l’application de l’impression 3D à la modélisation physique des massifs rocheux." Revue Française de Géotechnique, no. 168 (2021): 1. http://dx.doi.org/10.1051/geotech/2021011.
Full textRoizard, X., M. Assoul, and J. von Stebut. "Conditions d’existence d’un régime microhydrodynamique pendant un essai de frottement entre un outil lisse et une tôle de carrosserie automobile." Matériaux & Techniques 83, no. 3-4 (1995): 3–8. http://dx.doi.org/10.1051/mattech/199583030003.
Full textDissertations / Theses on the topic "Essai de frottement unidirectionnel"
Takeda, Sho. "A Study of the Consolidation Process of Cu from Powder to Plate by Compression Shearing Method." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEC047.
Full textCompression shearing method at room temperature (COSME-RT) is a molding technique for materials (especially metals) from powder to plate by applying simultaneous biaxial force at room temperature and an ambient atmosphere. COSME-RT differs from conventional molding techniques in that it can fabricate materials without a heating process and can thus develop new materials that cannot be formed by conventional methods. However, the consolidation mechanism of materials by COSME-RT has not been clarified because of the difficulty of controlling the process. To control the consolidation process of metal materials by COSME-RT, I attempted two experiments to control the shearing force: (1) the suppression of the shearing force by dispersing solid lubricant particles into Cu powder particles; and (2) the unidirectional friction test on the uniaxial compressed powder sample to create and observe the change of the bonding condition in the depth direction of the sample. As a result, I successfully obtained new knowledge about the consolidation process of Cu plate from powder by COSME-RT and built the new consolidation model of Cu by COSME-RT
Bouquerel, Laure. "Contribution à l’étude de la mise en forme de renforts secs unidirectionnels HiTape® pour structures primaires aéronautiques." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEM014.
Full textIn the context of developing out-of-autoclave processes for primary aircraft structures, this PhD (CIFRE Hexcel/Mines Saint-Etienne funding in partnership with INSA-Lyon) aims to model and simulate the forming of an initially flat stack of HiTape® reinforcements. Developed by Hexcel, HiTape® is a dry unidirectional carbon fiber reinforcement with a thermoplastic veil on each side, designed to achieve a performance comparable to which of state-of-the-art preimpregnated materials. First, HiTape® behavior is characterized; in particular, nonlinear out-of-plane bending behavior is measured using a modified Peirce flexometer, and the inter-ply coefficient of friction is assessed with a pull-through friction test. Then, modeling the forming of structural reinforcements requires consideration of the material, geometrical and contact nonlinearities. A transversely isotropic hyperelastic law is therefore selected for the intra-ply behavior, while the interface where is located the melted thermoplastic veil is modeled using cohesive zones describing both friction and adhesion. The mechanical problem is solved using a finite element method with Z-set software. Finally, in order to simulate the forming of a stack of reinforcements, mold-to-preform contact is assumed to be perfect (frictionless)
Dubois, André. "Essai de compression-translation : Contribution à l'identification des lois de comportement surfaciques et volumiques." Valenciennes, 1995. https://ged.uphf.fr/nuxeo/site/esupversions/b97e143c-6fb6-44cc-83c8-e34fc7845c1e.
Full textViat, Ariane. "Troisième corps à l'interface céramique métal sous chargement de fretting usure à hautes températures." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEC054.
Full textIn a civil turbojet motor, the blade/disk contact in the low pressure turbine undergoes thermomechanical cycling due to relative displacements between parts during the different flight phases. This cycling results in reciprocating micro-movements named “fretting” at the blade/disk interface. This study focuses on a ceramic versus metallic contact under fretting, aimed at describing the tribological behavior of developing ceramic-coated blades to replace phased-out metallic parts. Firstly, different ceramic coatings are compared regarding their wear resistance under fretting at in-flight temperature (700°C). The counterbody is the HS25 (cobalt-based alloy) protecting foil of the disk. The most favorable ceramic/metallic tribocouple evidences a very low wear rate as well as low friction that match the formation of a glaze layer. The glaze layer is a third body formed from wear debris in high temperature rubbed contacts. Such tribofilm has been commonly observed in metallic/metallic interfaces but its occurrence in a ceramic/metallic contact is new. Then the glaze layer is precisely characterized. Tribologically speaking, its kinetics and formation conditions are determined over temperature and tribological parameters, in order to ensure low wear under flight conditions. Morphologically, the glaze layer is a nanostructured amorphous and crystalline sintered from both metallic and oxidized worn debris. Finally, the nanostructured glaze layer is mechanically described as a ductile material in its stability domain, whereas debris from severe wear are brittle. The correlation of morphological, physico-chemical and mechanical studies enlighten the glaze layer formation criteria, with the aim of predicting glaze layer occurrence, hence wear protection for a given contact
Aboura, Abdelaziz. "Etude expérimentale du comportement mécanique de matériaux granulaires non conventionnels." Université Joseph Fourier (Grenoble), 1999. http://www.theses.fr/1999GRE10225.
Full textChampagne, Karine. "Contribution à l'étude des paramètres de résistance au cisaillement des barrages en béton du Québec." Mémoire, Université de Sherbrooke, 2012. http://hdl.handle.net/11143/5512.
Full textChoi, Won Jong. "Variation de structure du polycarbonate vitreux pendant l'essai de traction observe par mesure du module d'young et du frottement interne." Poitiers, 1986. http://www.theses.fr/1986POIT2280.
Full textBaïz, Sarah. "Etude expérimentale du contact aube/abradable : contribution à la caractérisation mécanique des matériaux abradables et de leur interaction dynamique sur banc rotatif avec une aube." Phd thesis, Ecole Centrale de Lille, 2011. http://tel.archives-ouvertes.fr/tel-00605091.
Full textGuéroult, Bertrand. "Influence de la microstructure sur la resistance a l'usure des ceramiques : etude de traitements post-frittage et developpement d'un essai de rayage." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0094.
Full textNouailletas, Olivier. "Comportement d'une discontinuité dans un géomatériau sous sollicitation chemo-mécanique : expérimentations et modélisations." Phd thesis, Université de Pau et des Pays de l'Adour, 2013. http://tel.archives-ouvertes.fr/tel-00947915.
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