Academic literature on the topic 'Propriétés mécaniques et analyse d'images'
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Journal articles on the topic "Propriétés mécaniques et analyse d'images"
Serifou, Mamery Adama, Obre Sery Paul Jolissaint, Bleh Raoul Kouassi, and Emeruwa Edjikémé. "Analyse physico-mécanique d’un composite paille de riz/ciment." Matériaux & Techniques 108, no. 2 (2020): 208. http://dx.doi.org/10.1051/mattech/2020024.
Full textTeyssier, Sylvie, Xavier Brancaz, Stéphane Bres, Gilles Peix, Brigitte Ohl, and Gérard Merle. "Analyse globale de l'orientation dans un BMC et relation avec les propriétés mécaniques." Revue des composites et des matériaux avancés 13, no. 1 (April 23, 2003): 15–39. http://dx.doi.org/10.3166/rcma.13.15-39.
Full textSerror, Maéva, Xavier Colin, and Jean-François Larché. "Vieillissement thermique d’un jonc composite carbone/époxy. Analyse de l’endommagement et ses conséquences sur les propriétés mécaniques." Revue des composites et des matériaux avancés 23, no. 1 (April 2013): 51–67. http://dx.doi.org/10.3166/rcma.23.51-67.
Full textNicoli, Cécile, Jean-François Carton, Alexis Vaucheret, and Philippe Jacquet. "Caractérisation de la propreté inclusionnaire d’aciers de fonderie par analyse d’images en microscopie électronique à balayage." Metallurgical Research & Technology 116, no. 5 (2019): 511. http://dx.doi.org/10.1051/metal/2018133.
Full textAmmar, Emna, Houda Mekki, Sada Ueno, and Mourad Ben Zina. "Traitement de leffluent des huileries dolive et son intégration dans des briques de construction - optimisation des propriétés physico-mécaniques par analyse statistique." Annales de Chimie Science des Matériaux 29, no. 4 (July 31, 2004): 33–46. http://dx.doi.org/10.3166/acsm.29.4.33-46.
Full textNYS, Y. "Préface." INRAE Productions Animales 23, no. 2 (April 10, 2011): 107–10. http://dx.doi.org/10.20870/productions-animales.2010.23.2.3292.
Full textFAVERDIN, P., and C. LEROUX. "Avant-propos." INRAE Productions Animales 26, no. 2 (April 16, 2013): 71–76. http://dx.doi.org/10.20870/productions-animales.2013.26.2.3137.
Full textPorto López, Pablo. "Dibujar la realidad." Sur le journalisme, About journalism, Sobre jornalismo 12, no. 2 (December 22, 2023): 38–55. http://dx.doi.org/10.25200/slj.v12.n2.2023.579.
Full textDARQUE-CERETTI, Évelyne, Éric FELDER, and Bernard MONASSE. "Étude et analyse des surfaces de polymères solides - Propriétés mécaniques et tribologiques." Frottement, usure et lubrification, April 2016. http://dx.doi.org/10.51257/a-v2-am3279.
Full textDissertations / Theses on the topic "Propriétés mécaniques et analyse d'images"
Bergonnier, Sandra. "Relation entre microstructure et propriétés mécaniques de matériaux enchevêtrés." Paris 6, 2005. https://tel.archives-ouvertes.fr/tel-00136408.
Full textBergonnier, Sandra. "Relations entre microstructure et propriétés mécaniques de matériaux enchevêtrés." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00136408.
Full text- Une analyse du procédé de crêpage à partir de vidéos numériques permettant de déterminer localement les champs de taux de déformations au sein de la crêpeuse et de quantifier la cinématique d'une crêpeuse.
- Une analyse du produit fini : à partir de photos de produit texturé, un outil de détermination de l'anisotropie locale a été mis en place. Cette anisotropie est liée aux performances mécaniques du produit. Cette interaction a été mise en évidence expérimentalement et une modélisation du comportement mécanique élastique anisotrope du matériau étudié a été proposée.
Lalande, Jérôme. "Étude de matériaux de contact électrique Ag-SnO2 : frittage et rôle des additifs : microstructures et propriétés." Paris 6, 2002. http://www.theses.fr/2002PA066205.
Full textMartin, Boris. "Etudes expérimentales de l’influence des paramètres de conception des renforts NCF unidirectionnels sur leurs propriétés de transport et leurs performances mécaniques." Thesis, Paris, ENMP, 2015. http://www.theses.fr/2015ENMP0084.
Full textThe energetic pricing of windmills involves the production cost of wind turbines and theirlifespan. Increasing the performances of these structures comes with an increase of the bladesdimensions. The spar caps of the latters, providing the strength to the blades, are made ofunidirectional glass fiber reinforcement known as NCF (Non-Crimp Fabrics). They involve two layers ofspecific orientations (0° and +/- 80°) stitched together. The architecture formed by the reinforcement isdependent on the design parameters which control the performance, on the fabric during the infusionprocess, and on the composite in the final structure. Therefore, the optimization of the NCF for thewindmill application is controlled by the design parameters. Three parameters (the stitch length, thestitch pattern and the weft Tex) are studied in order to establish the links morphology / process andmorphology / mechanical performances. Experimental investigations are undertaken to determine boththe hydraulic permeability tensor of the fabrics and the elastic properties of their composite. Thesemacroscopic properties are related to the morphology determined using images analysis technics. It isdemonstrated that each of the design parameters impacts the heterogeneity of the composite. Highheterogeneity allows improving the performance during the infusion process while reducing themechanical one. The optimization of the NCF using the design parameters requires setting acompromise in the heterogeneity of the architecture formed by the reinforcement. Another solutionwould consist in allowing the morphology to evolve during the infusion process, to go from an openstructure that eases the flow to a homogeneous structure safer for the windmill application
Duval, Thimothée. "Analyse multi-échelles des relations microstructure/propriétés mécaniques sous sollicitation monotone et cyclique des alliages de titane β-métastable." Phd thesis, ISAE-ENSMA Ecole Nationale Supérieure de Mécanique et d'Aérotechique - Poitiers, 2013. http://tel.archives-ouvertes.fr/tel-00959280.
Full textDuval, Thimothée. "Analyse multi-échelles des relations microstructure/propriétés mécaniques sous sollicitation monotone et cyclique des alliages de titane β-métastable." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2013. http://www.theses.fr/2013ESMA0033/document.
Full textThe improvement of specific performances of metallic materials used for aerospaceapplications needs continuous researches and developments. Titanium alloys are materials ofchoice for aerospace companies thanks to their high mechanical properties and low density.Among them, the β-metastable alloys that retain up to 40% of β phase are more and moreintroduced in aircraft engines (Ti-17) and for structural parts (e.g. landing gears in Ti-5553and Ti-10-2-3).This work aims to analyse the mechanical behaviour and durability of these alloyssubmitted to monotonic or cyclic loadings. Mechanical tests have been developed on differentindustrial microstructures as on academic simplified ones produced by specific thermaltreatments. Deformation mechanisms (slip systems) and damage processes (cracks initiation)were identified and analyzed at different scales using microscopes (optical and SEM) andcrystallographic features were studied by EBSD. Specific in situ tests performed undermicroscopes (optical and SEM) and digital images correlation techniques at scales of interesthave permitted to identify and to quantify the key microstructural parameters and the kineticsof these processes. One major result concerns the influence of the anisotropy of mechanicalproperties associated to the β phase
Ibrahim, Marcelle. "Étude du comportement mécanique d’UO2 implanté en helium par micro-diffraction des rayons X et modélisation par éléments finis." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1140/document.
Full textIn order to study the mechanical behavior of nuclear fuel during direct long term storage, UO2 polycrystals were implanted with Helium ions at a thin surface layer (1 µm approximately), which leads to stress and strain fields in the layer. Strains were measured, at the grains scale, by X-ray micro-diffraction, using synchrotron radiation (ESRF). Image analysis methods were developed for an automatic analysis of the large number of diffraction patterns. Applying statistical tools to Laue patterns allows an automatic detection of low quality images, and enhances the measurement precision. At low layer thickness, the mechanical interaction between grains can be neglected. At higher thickness, experimental results showed a higher mechanical interaction near grain boundaries that can be modeled using finite elements method. Geostatistical tools were used to quantify these interactions. The swelling and the elastic constants in the implanted layer can be estimated through the measured strains on a large number of grains with different orientations. This work allows the determination of the swelling of nuclear fuel in irradiation conditions, as well as the modification of its elastic properties
Ding, Yang. "Analyse morphologique de la microstructure 3D de réfractaires électrofondus à très haute teneur en zircone : relations avec les propriétés mécaniques, chimiques et le comportement pendant la transformation quadratique-monoclinique." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00743511.
Full textMassat, Myriam. "Caractérisation de la microfissuration, de la perméabilité et de la diffusion d'un béton : application au stockage des déchets radioactifs." Toulouse, INSA, 1991. http://www.theses.fr/1991ISAT0033.
Full textReda, Ali. "A multiscale mechanical study of flax stems and fibres for the development of an in-the-field tool capable of predicting optimum retting." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN055.
Full textAgriculture 4.0, also known under several aliases such as ‘digital agriculture', ‘smart farming', and ‘e-farming' is currently developing rapidly in terms of research, development, and commercial applications. As with Agriculture 1.0, 2.0, and 3.0, the objective of Agriculture 4.0 is the use of technology to improve all areas of agriculture. In Agriculture 4.0 it is the application of microelectronics and microtechnologies. Unlike before, these technologies bring things such as the internet-of-things, big data, telecommunications, novel sensing, rapid feedback, data analysis, connectivity, artificial intelligence etc. In principle, all these areas should result in a massive modernization of farming in terms of organisation, yield, efficiency, and quality of produce. However, Agriculture 4.0 is so vast that if one is to contribute to it, even in a minor way, one has to choose a specific area to contribute. The area chosen for the study in this PhD was flax fibre production. Flax fibres are naturally strong fibres which can be extracted from flax stems. The flax stems have evolved to have robust micrometre-diameter fibres running the length of the outside of the stem, and held in place in the external tissue of the stem. Once extracted and isolated, flax fibres have numerous applications ranging from textiles to composite materials. In order to facilitate the mechanical extraction of flax fibres from their parent stems, the stems undergo a process known as ‘retting'. Retting leads to the breakdown of the external tissue between the fibres. A common form of retting is known as ‘dew retting'. In dew retting, natural processes such as bacteria and fungi result in enzymes which break down the middle lamella and gradually separate fibre bunches and fibres from bunches. The length of dew retting depends heavily on the weather. Too little retting results in difficult fibre extraction in the factory, too much retting can result in a compromise in fibre quality. It has long been known that there is an optimum retting point-even the ancients knew this. Certain skilled artisan farmers are able to judge this point via a combination of manual manipulation of the stems, observation of damage caused to the external tissue via this manoeuvre, and also observing the colour and the smell of the stems during this very skilled, but artisanal, testing. It is clear that the artisan is performing rudimentary laboratory tests quite literally ‘in-the-field'. It would seem logical therefore to try to quantify such tests and see if a reliable tool can be made to help the artisan. And indeed, this is exactly what others have attempted. The introduction of the PhD gives examples of attempts to make optimal-retting tools in the 1980s and after. Inspired by this early work, the work of this PhD attempts a full multiscale mechanical characterization of flax stems and fibres during a retting cycle (summer 2022) and, somewhat ambitiously, performed in real time-to our knowledge for the first time. The mechanical characterization involved macroscopic mechanical tests (bending, crushing, and twisting), as well as novel microscopic mechanical testing of single flax fibres using novel methods inspired by MEMS. In addition, the nanoscopic mechanical properties of the primary cell wall of retting flax fibres was characterised using nanoindentation AFM. As the experimental work, analysis via analytical modelling, and interpretation descends in scale from macro, through micro, to nano, we learn a little more of how the retting affects the stems, their properties, and their fibres. In addition to simply learning, a very positive outcome of the PhD is that one is able to suggest a mechanically-induced damage mechanism in stems which could be the basis for a tool. One can note however, that the uncontrollable multiparameter nature of the subject, e.g. the weather, means that several studies would be needed to confirm beyond doubt observations from a single retting cycle
Books on the topic "Propriétés mécaniques et analyse d'images"
Berthelot, J. M. Matériaux composites: Comportement mécanique et analyse des structures. Paris: Masson, 1992.
Find full textOntario. Esquisse de cours 12e année: Le Canada et le monde: une analyse géographique cgw4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: L'église et la culture hre4m. Vanier, Ont: CFORP, 2007.
Find full textOntario. Esquisse de cours 12e année: Histoire de l'Occident et du monde chy4u. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Politique canadienne et mondiale cpw4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Exploration et création artistique aea4o cours ouvert. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Philosphie; approches et problématiques hzt4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Individus, familles et sociétés hhs4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Vie active et santé ppl4o cours ouvert. Vanier, Ont: CFORP, 2002.
Find full textOntario. Esquisse de cours 12e année: Changements et défis sociaux hsb4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Find full textBook chapters on the topic "Propriétés mécaniques et analyse d'images"
ATTO, Abdourrahmane M., Héla HADHRI, Flavien VERNIER, and Emmanuel TROUVÉ. "Apprentissage multiclasse multi-étiquette de changements d’état à partir de séries chronologiques d’images." In Détection de changements et analyse des séries temporelles d’images 2, 247–71. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9057.ch6.
Full textATTO, Abdourrahmane M., Fatima KARBOU, Sophie GIFFARD-ROISIN, and Lionel BOMBRUN. "Clustering fonctionnel de séries d’images par entropies relatives." In Détection de changements et analyse des séries temporelles d’images 1, 121–38. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9056.ch4.
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