Letteratura scientifica selezionata sul tema "Structures métalliques"
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Articoli di riviste sul tema "Structures métalliques"
Geara, F., W. Raphael e F. Kaddah. "Optimisation des structures métalliques fléchies dans un calcul plastique". Journal de Physique IV (Proceedings) 124 (maggio 2005): 249–54. http://dx.doi.org/10.1051/jp4:2005124037.
Testo completoDelair, J. "Structures métalliques soudées : fissuration et rupture examens de cas". Matériaux & Techniques 85, n. 1-2 (1997): 15–24. http://dx.doi.org/10.1051/mattech/199785010015.
Testo completoAminanda, Y., B. Castanié, J. J. Barrau e P. Thevenet. "Modélisation de l'indentation des structures sandwichs à peaux métalliques". Mécanique & Industries 6, n. 5 (settembre 2005): 487–98. http://dx.doi.org/10.1051/meca:2005061.
Testo completoDelair, J. "Fissuration et rupture de structures métalliques soudées - examens de cas". Matériaux & Techniques 84, n. 9-10 (1996): 17–25. http://dx.doi.org/10.1051/mattech/199684090017.
Testo completoDelair, J. "Fissuration et rupture de structures métalliques soudées - Examens de cas". Matériaux & Techniques 84, n. 11-12 (1996): 35–46. http://dx.doi.org/10.1051/mattech/199684110035.
Testo completoMassiani, Y., J. P. Crousier e A. Lazzeri. "Protection de structures métalliques immergées par application subaquatique de résines époxy". Matériaux & Techniques 82, n. 6-7 (1994): 9–16. http://dx.doi.org/10.1051/mattech/199482060009.
Testo completoKociak, Mathieu, Luiz Henrique Galvão Tizei, Sophie Meuret, Hugo Lourenço-Martins e Odile Stephan. "Spectromicroscopies électroniques : sonder les propriétés optiques de nanomatériaux avec des électrons rapides". Photoniques, n. 102 (maggio 2020): 39–43. http://dx.doi.org/10.1051/photon/202010239.
Testo completoGenet, Cyriaque. "Chiralité et optique plasmonique". Reflets de la physique, n. 76 (settembre 2023): 4–10. http://dx.doi.org/10.1051/refdp/202376004.
Testo completoLevallois, Alexandre, Laureen Nivelais, Olivier Basuyaux, Katherine Costil, Antoine Serpentini e Christelle Caplat. "Étude de la spéciation dans l’eau de mer de l’aluminium et du zinc libérés par la dissolution d’une anode galvanique". Matériaux & Techniques 110, n. 6 (2022): 605. http://dx.doi.org/10.1051/mattech/2023005.
Testo completoSkaržauskas, Valentinas, Valentinas Jankovski e Juozas Atkočiűnas. "Optimisation des structures métalliques élastoplastiques sous conditions de rigidité et de plasticité données". Revue européenne de génie civil 13, n. 10 (15 dicembre 2009): 1203–19. http://dx.doi.org/10.3166/ejece.13.1203-1219.
Testo completoTesi sul tema "Structures métalliques"
Bachelier, Guillaume. "Propriétés optiques de nano-structures métalliques et semi-conductrices". Phd thesis, Université Paul Sabatier - Toulouse III, 2004. http://tel.archives-ouvertes.fr/tel-00008229.
Testo completoJabbado, Mohamad. "Fatigue polycyclique des structures métalliques : durée de vie sous chargements variables". Phd thesis, Ecole Polytechnique X, 2006. http://pastel.archives-ouvertes.fr/pastel-00002116.
Testo completoPankau, Rafal. "Conception optimale des portiques avec la prise en compte des problèmes de stabilité". Thesis, Lille 1, 2010. http://www.theses.fr/2010LIL10022/document.
Testo completoThe use of portal frames in building engineering is very common. Engineers, during the design process, aim to reduce the cost of the structure and, consequently, the whole investment. The complexity of the problem and lack of proper tools assisting the optimisation process, hamper the effective use of material. In the thesis, the genetic algorithms were used to solve the problem of optimization of steel portal frames. In the first part of dissertation, the problems of steel portal frames design were analysed and design assumptions were done. European and Polish codes for steel structures design andstandards for loads got acquainted. Procedures for section and element dimensioning were built taking into account all essential applied to real structures. Next, a version of the genetic algorithm adapted for the optimization of frame structureswas presented. A complete computer program containing modules of static analysis, stability analysis, dimensioning and optimization has been created. The developed software was applied to the problem of optimization of steel portalframes. The solutions were calculated according to European standards, and afterwards Polish standards. The optimization of 96 frame examples of different geometry and loading was carried out. The analysis of solutions enabled us to formulate conclusion and recommendations concerning optimal design of portal frames. The obtained results can be useful in real design problems
Le, Crom Levasseur Bénédicte. "Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites". Phd thesis, Université Sciences et Technologies - Bordeaux I, 2010. http://tel.archives-ouvertes.fr/tel-00497651.
Testo completoMARINHO, IVY JEANN PINTO. "LE PROJET OPTIMUM DE STRUCTURES MÉTALLIQUES DE GRADINS A RÉUTILISABLES PAR ANSYS". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2002. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5111@1.
Testo completoLes structures métalliques qui sont utilisés en gradins réutilisables ou temporaires pour les grands événements publics sont composés par barres et connecteurs. Le haut niveau de charges dynamiques que ces structures sont sujets et as caractéristique d être réutilisables, la rend différent des autres structures de l ingénieur civil. Alors, elles doivent être donné évitant l effect de résonance dynamique. Cet-à-dire, lorsque nous optimisons ces structures, nous devrions considérer la restriction relative aux fréquences naturelles qui devraient être dehors de la bande des fréquences sollicitant. En plus, c est nécessaire qu elle réponde convenablement aux charges statiques. Alors, quelconque amélioration en son suppléant statique et dynamique apportera des avantages directs au projet. L idée de ce travail est proposer l optimisation du projet statique et dynamique de gradins réutilisabless en utilisant modélisation et analyse numérique de structures par la méthode des éléments finis (ANSYS 5.4/5.5-APDL) et optimisation par la méthode de programmation mathématique. Le projet optimum des éléments de la structure, sujet à charge statique, est basé sur les suivant paramètres : Poids et tension. En plus, il faut vérifier le niveau de sécurité contre la ruine lorsqu elles sont sujet à charges dynamiques intenses, en proposant des critères pour la correcte disposition du fortifier, en observant les variations dans les fréquences naturelles et façons de vibration. L optimisation de ces structures des beaucoup d applications apportera d avntage immédiat à la population.
Estruturas metálicas de arquibancadas reutilizáveis ou temporárias são utilizadas em grandes eventos públicos, sendo compostas por barras e conectores, com montagem realizada in loco. O elevado nível de cargas rítmicas aplicadas a tais estruturas e sua característica de múltipla reutilização, a difere de estruturas comuns da Engenharia Civil, exigindo que elas sejam projetadas de modo a evitar o efeito de ressonância dinâmica. Isso significa que, ao otimizar tais estruturas, deve-se considerar a restrição relativa às freqüências naturais que devem estar fora da faixa das freqüências solicitantes. Além disso, é necessário que a estrutura responda adequadamente às cargas estáticas. Disto resulta que eventuais melhorias no seu desempenho estático e dinâmico trarão benefícios diretos ao projeto. A idéia deste trabalho é propor a otimização do projeto estático e dinâmico de arquibancadas reutilizáveis, utilizando-se modelagem e análise numérica de estruturas reais pelo Método dos Elementos Finitos (ANSYS 5.4/5.5 - APDL), e otimização por método de programação matemática. Pretende-se atingir o dimensionamento ótimo dos elementos componentes da estrutura, sob carga estática, baseado nos parâmetros peso e tensão, além de verificar o nível de segurança contra colapso quando sujeitas a solicitações rítmicas intensas, propondo critérios para a correta disposição do contraventamento, observando as variações nas freqüências naturais e modos de vibração. A otimização dessas estruturas de grande aplicação comercial trará benefício imediato à população.
Leclere, Guillaume. "Simulation numérique de la rupture dynamique de structures métalliques à l'échelle macroscopique". Nantes, 2004. http://www.theses.fr/2004NANT2118.
Testo completoDe, Luca Anthony. "Redistribution atomique de contaminants métalliques aux interfaces des structures des technologies CMOS". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4302/document.
Testo completoDuring this thesis work, we studied the atomic redistribution of metallic contaminantsin silicon and near a SiO2/Si interface. To conduct this study, we used three complementary characterisation techniques : transmission electron microscopy (TEM), atomic probe tomography (APT) and secondary ion mass spectrometry (SIMS).We first studied the diffusion and equilibrium segregation of various contaminants at a SiO2/Si interface, and more particularly, the diffusion of W and Mo. W exhibits a very slow diffusion kinetic.Physico-chemical characterizations performed by TEM and APT allowed discussing the concentrationprofiles obtained by SIMS leading to the diffusion model that we proposed. The study of Mo diffusionrevealed that this specy exhibits a low solubility limit in silicon and strongly interacts with irradiation-induced defects, leading to its precipitation.In a second phase, we studied the effect of a mobile interface, during a reaction, on the atomic redistribution of contaminants near this interface. We performed a comparative study of the behaviourof Fe and W during oxidation processes. W precipitates in the silicon substrate and is progressivelyrejected (snowplow) by the oxidation. Fe preferentially precipitates at the SiO2/Si interface. Theseprecipitates mask a part of the silicon substrate and thus hinder its oxidation, leading to the formation of characteristics pyramidal-shaped defects at the interface. Low temperature nickel germano-silicide formation have also been investigated. This reaction leads to the 3D snowplow of germanium atoms at the NiSiGe/SiGe interface
Le, Crom Bénédicte. "Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites". Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14024/document.
Testo completoRepairing of metallic structures using composite patches bonded with an adhesive layer is more and more common in the aeronautic field, and particularly at DGA Techniques Aéronautiques. In order to guarantee the quality of this bond, the sensitivity of ultrasonic guided waves is investigated. Shear-horizontally polarized (SH) waves, and Lamb waves are investigated to infer the stiffness of the adhesive layer. The SAFE method is used to predict the dispersion curves and mode shapes of the different wave modes propagating along the three-layer assembly. Numerical simulations are run for selecting the most appropriate wave modes, i.e. with higher sensitivity to the stiffness of the bond than to other components properties. Experiments are also made for generating-detecting pre-selected SH or Lamb wave modes in order to confirm the numerical predictions. Finally the resolution of an inverse problem, consisting in the evaluation of the stiffness modulus of the bond layer between an aluminium plate and a carbon-epoxy composite patch, at different curing time, is proposed as a contribution to the establishment of possible strategies for bonds testing. This work was supported by DGA, France
Nguyen, Manh-Hung. "Évaluation des performances de protections passives au feu pour les structures métalliques". Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2023. http://www.theses.fr/2023UCFA0046.
Testo completoSteel-timber hybrid structures are becoming more and more common in the construction industry. They offer high practical advantages as sustainable solutions with high load-bearing capacities and fire resistance. However, due to steel thermal conductivity and the decrease of mechanical performance with high temperatures, steel structures need to be protected in case of fire. Wood is occasionally used as passive protection of steel to maintain its mechanical strength as long as possible with the aim to prevent structural collapse under fire. This thesis aims to analyse the thermal behaviour of hybrid steel-timber elements through experimental tests and numerical modelling. Experiments in the furnace are performed to obtain the evolution of temperature on the steel profile surfaces and inside the timber element. Thus, thermocouples are installed on the steel profile surface and different depths of timber elements. The fire tests were performed on various steel-timber combinations using T and I steel cross-sections with various wood species. A high-temperature furnace up to 1200 °C built in the laboratory was used. The results show that wood provides significant protection to the steel cross-section mainly the fully encapsulated IPE profile. Wood behaves as an insulating material that significantly reduces the temperature rise in steel. This solution contributes to the development of passive protection of steel structures using bio-based materials. The experimental results are compared to those obtained through thermal simulations using Abaqus software. The comparison shows that the numerical model can be used to evaluate the temperature increase in the steel element protected by timber in high-temperature conditions
Rahem, Ahmed. "Analyse non linéaire en grandes rotations et grands déplacements des structures minces métalliques". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60783.pdf.
Testo completoLibri sul tema "Structures métalliques"
Jean, Morel. Calcul des structures métalliques selon l'Eurocode 3. 6a ed. Paris: Eyrolles, 2005.
Cerca il testo completo1958-, Bland A., e Heinrich B. 1940-, a cura di. Ultrathin magnetic structures. Berlin: Springer, 1994.
Cerca il testo completoNastar, Navid, e Liu Rui. Failure case studies: Steel structures. Reston, Virginia: American Society of Civil Engineers, 2019.
Cerca il testo completo1938-, Agócs Zoltan, a cura di. Assessment and refurbishment of steel structures. New York, NY: Spon Press, 2004.
Cerca il testo completoVila, Real Paulo, e European Convention for Constructional Steelwork, a cura di. Fire design of steel structures: Eurocode 1 : actions on structures, part 1-2 : General actions - Actions on structures exposed to fire - Eurocode 3 : design of steel structures, part 1-2 : General rules - Structural fire design. Berlin: ECCS, 2010.
Cerca il testo completoKároly, Jármai, a cura di. Design and optimization of metal structures. Chichester, UK: Horwood Pub., 2008.
Cerca il testo completo1955-, Bradford M. A., e Nethercot D. A, a cura di. The behaviour and design of steel structures to BS5950. 3a ed. London: Spon, 2001.
Cerca il testo completo1955-, Bradford M. A., Nethercot D. A e Trahair N. S, a cura di. The behaviour and design of steel structures to BS5950. 3a ed. New York: Spon Press, 2001.
Cerca il testo completoReider, Bjorhovde, Brozzetti Jacques e Colson André, a cura di. Connections in steel structures: Behaviour, strength, and design. London: Elsevier Applied Science, 1988.
Cerca il testo completoGalambos, T. V. Structural stability of steel: Concepts and applications for structural engineers. Hoboken, N.J: John Wiley & Sons, 2008.
Cerca il testo completoCapitoli di libri sul tema "Structures métalliques"
PAREIGE, Philippe, e Christophe DOMAIN. "Les alliages métalliques". In Les matériaux du nucléaire sous irradiation, 51–90. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9148.ch2.
Testo completoBenaïssa, Brahim. "Chapitre 17 : La corrosion des structures métalliques dans les ports maritimes". In Biodétérioration des matériaux, 259–66. EDP Sciences, 1998. http://dx.doi.org/10.1051/978-2-7598-0237-1.c020.
Testo completoSablé, Sophie, Philippe Refait, René Sabot, Marc Jeannin, Ibtissem Doghri, Mickaël Langumier e Isabelle Lanneluc. "7 Biofilms en milieu marin : exemple des vasières intertidales et des structures métalliques portuaires". In Interactions Matériaux-Microorganismes, 153–72. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2112-9-009.
Testo completoSablé, Sophie, Philippe Refait, René Sabot, Marc Jeannin, Ibtissem Doghri, Mickaël Langumier e Isabelle Lanneluc. "7 Biofilms en milieu marin : exemple des vasières intertidales et des structures métalliques portuaires". In Interactions Matériaux-Microorganismes, 153–72. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2112-9.c009.
Testo completoCastaner Munoz, Esteban. "Chapitre 2. Les réalisations. L’évolution chronologique des structures de la construction et la localisation géographique". In L'architecture métallique en Espagne, 95–129. Presses universitaires de Perpignan, 2004. http://dx.doi.org/10.4000/books.pupvd.5966.
Testo completoAtti di convegni sul tema "Structures métalliques"
Benaïssa, Brahim. "La corrosion des structures métalliques en mer : types et zones de dégradations". In Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2004. http://dx.doi.org/10.5150/jngcgc.2004.074-b.
Testo completo