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Academic literature on the topic 'Méthode élément diffus'
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Journal articles on the topic "Méthode élément diffus"
Gow, James I. "L'histoire de l'administration publique québécoise." Dossiers 16, no. 3 (April 12, 2005): 385–411. http://dx.doi.org/10.7202/055704ar.
Full textCosta, Maurício Caldora, Jean-Louis Coulomb, Yves Maréchal, and Silvio Ikuyo Nabeta. "Approximation adaptative de fonctions objectifs par la méthode des éléments diffus." Revue internationale de génie électrique 4, no. 1-2 (June 30, 2001): 41–53. http://dx.doi.org/10.3166/rige.4.41-53.
Full textBreitkopf, Piotr, Gilbert Touzot, and Pierre Villon. "Méthodes alternatives aux éléments finis: collocation diffuse à double grille." Revue Européenne des Éléments Finis 9, no. 1-3 (January 2000): 277–93. http://dx.doi.org/10.1080/12506559.2000.10511441.
Full textLaplantine, François. "Wu Wei." Anthropen, 2016. http://dx.doi.org/10.17184/eac.anthropen.0029.
Full textDissertations / Theses on the topic "Méthode élément diffus"
Pruvost, Olivier. "Application de l'approximation diffuse à des problèmes mécaniques linéaires et non linéaires." Compiègne, 1999. http://www.theses.fr/1999COMP1201.
Full textSavignat, Jean-Michel. "Approximation diffuse Hermite et ses applications." Phd thesis, École Nationale Supérieure des Mines de Paris, 2000. http://pastel.archives-ouvertes.fr/pastel-00577930.
Full textLaouar, Tayeb. "Contribution à l'étude de l'approximation diffuse : auto-adaptativité en éléments diffus." Compiègne, 1996. http://www.theses.fr/1996COMPD891.
Full textMarih, Mohamed. "Mise en œuvre de l'approximation diffuse et de la méthode des éléments diffus pour la résolution des problèmes de mécanique." Compiègne, 1994. http://www.theses.fr/1994COMPD767.
Full textCaldora, Costa Mauricio. "Optimisation de dispositifs électromagnétiques dans un contexte d'analyse par la méthode des éléments finis." Phd thesis, Grenoble INPG, 2001. http://tel.archives-ouvertes.fr/tel-00551743.
Full textChamoret, Dominique. "Modélisation du contact : nouvelles approches numériques." Ecully, Ecole centrale de Lyon, 2002. http://bibli.ec-lyon.fr/exl-doc/TH_T1897_dchamoret.pdf.
Full textThis work has been done in collaboration between the Laboratoire de Tribologie et Dynamique des Systèmes (UMR 5513 CNRS/ECL/ENISE) and the company ESI Sofware. The aim is to develop the modelling of 3D contact in an implicit approach and to implement algorithms likely to adapt to most of situations met in industry. With this intention we propose three new algorithms concerning the regularization of contact surfaces, the adaptation of the penalty parameter and the adjustment of the load step. The numerical treatment of contact problems generates many difficulties. These problems come from strong geometric and material nonlinearities. Using the finite element method, the contact interface is represented by a surface only piecewise differentiable. The strategy we develop determines a smooth contact surface by using only the data of the nodes of the initial finite element mesh thanks to the technique of diffuse approximation. We have chosen to use the penalty method to take into account contact constraints but the optimum choice of the penalty parameter is often very difficult because it depends on the local rigidity of the structure. We propose an original strategy to determine an optimal parameter based on the notion of acceptable interpenetration between bodies in contact. The last algorithm proposed relates to the adjustment of the load step. The main idea of the method we develop is to limit the number of changes of contact status in each load step
Samba, Gérald. "Analyse asymptotique de schémas de résolution de l'équation du transport en régime diffusif." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2008. http://tel.archives-ouvertes.fr/tel-00363723.
Full textPrax, Christian. "Contribution à la résolution numérique de problèmes de mécanique des fluides et de thermique par approximation diffuse." Poitiers, 1996. http://www.theses.fr/1996POIT2251.
Full textRambert, Gaëlle. "Modélisation des couplages thermo-diffuso-mécaniques dans les matériaux polymères : application numérique à la décompression explosive." Poitiers, 2002. http://www.theses.fr/2002POIT2327.
Full textA fully coupled thermo-diffuso-mechanical model was developed in the framework of generalized standard media in order to describe polymer structures that are subjected to an explosive decompression under high temperature and high gas pressure. One considered a polymer-gas mixture defined by constant characteristic magnitudes. With the small perturbations and isotropy assumptions, the model was applied to elastic, viscoelastic and elasto-plastic behaviours. The thermo-diffuso-elasticity numerical implementation led to a qualitative study of coupling effects and to the introduction of the simplest elastic model defined by the dilation coefficients and the coefficient corresponding to the heat production due to the gas diffusion. This numerical tool should make easier the experiments analysis and the material characterization. .
Mansouri, Chemseddine. "Traitement des signaux laser Doppler et modélisation spatio-temporelle de la spectroscopie tissulaire diffuse et de fluorescence par les méthodes de Monte Carlo et des éléments finis : application au diagnostic médical." Angers, 2009. http://www.theses.fr/2009ANGE0027.
Full textThis work is related to the exploration of biological tissues using laser to diagnose microcirculatory insufficiencies and the localization of cancer cells made fluorescent by contribution of a specific marker. It aims at helping experts to carry out their diagnosis non-invasively from a beam of optical measurements, in the spectra of the selected wavelenghts (visible and near infrared). . . .