Literatura científica selecionada sobre o tema "Énergie de déformation élastique"
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Artigos de revistas sobre o assunto "Énergie de déformation élastique"
Mabelly, P., P. Hadmar, M. Desvignes e J. M. Sprauel. "Influence des hétérogénéités de déformation élastique sur l'élargissement des pics de diffraction X". Le Journal de Physique IV 06, n.º C4 (julho de 1996): C4–197—C4–209. http://dx.doi.org/10.1051/jp4:1996418.
Texto completo da fonteBarthel, Étienne, Thierry Deschamps, Guillaume Kermouche, Christine Martinet, Gergely Molnar e Anne Tanguy. "Le verre : fragile ou ductile ?" Reflets de la physique, n.º 74 (dezembro de 2022): 46–51. http://dx.doi.org/10.1051/refdp/202274046.
Texto completo da fonteEve, Sophie, Florent Moisy, Rosine Coq Germanicus, Clara Grygiel, Eric Hug e Isabelle Monnet. "Caractérisation par nanoindentation du GaN irradié par des ions uranium de grande énergie". Matériaux & Techniques 105, n.º 1 (2017): 108. http://dx.doi.org/10.1051/mattech/2017008.
Texto completo da fonteBechir, H. "Énergie volumique de déformation du caoutchouc vulcanisé et renforcé au noir de carbone pour des applications industrielles". Mécanique & Industries 3, n.º 3 (2002): 245–52. http://dx.doi.org/10.1016/s1296-2139(02)01166-1.
Texto completo da fonteChauveau, Th, Ph Gerber, P. Bastie, B. Hamelin, J. Tarasiuk e B. Bacroix. "Application de la méthode de Laue refocalisée à haute énergie à l'étude des mécanismes de recristallisation après déformation à froid de métaux CFC". Journal de Physique IV (Proceedings) 12, n.º 6 (julho de 2002): 107–14. http://dx.doi.org/10.1051/jp4:20020218.
Texto completo da fonteTeses / dissertações sobre o assunto "Énergie de déformation élastique"
Shi, Hailong. "Recrystallization of 2D dimensioned Copper (Cu) foils and graphene nanosheets (GNSs) reinforced Cu matrix laminated composites". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0096.
Texto completo da fonteRecrystallization is the intrinsic process of cold-deformed metallic materials that occurs inevitably during the thermal treatment. The produced recrystallization texture contributes to the anisotropy of the mechanical and physical properties. Motivated by the minimization of modern products, 2D materials and laminated composites are increasingly demanded by many applications. Thus, for both scientific and engineering purposes, investigations on the recrystallization of such materials are needed to understand the underlying mechanisms. In this work, Cu foils and graphene nanosheets (GNSs) reinforced Cu matrix laminated composites with Cu foil thicknesses of 10 μm and 30 μm were fabricated, and the recrystallization features were thoroughly investigated from microscale to macroscale by means of SEM-EBSD for microstructure observation, neutron and synchrotron radiation for texture analysis and in-situ synchrotron radiation for lattice strain evaluation. The obtained data were analyzed in the frame of crystallography combined with crystal elasticity and surface energy. The results showed that the recrystallization behavior of the Cu foils were greatly affected by the Cu foil thickness and the addition of the GNSs. For the 10 μm thick Cu foils without GNS, they underwent a transition from the cold-rolling texture to a recrystallization texture dominated by RD-rotated Cube and φ_2-rotated Copper components. The transition was screened by both intrinsic microstructural and extrinsic sample geometrical factors. The orientations of the nuclei were mainly inherited from the deformation orientations. Those with low Taylor factors (Cube, Goss and Brass) demonstrated size preference. The post-nucleation growth was affected by the biaxial thermal elastic constraint and surface energy. Due to their opposite effects, the orientations having moderate biaxial moduli and surface energy density (S, Copper, Brass and recrystallization components) survived, resulting in a mixed texture at the completion of recrystallization. The coherent Σ3 boundaries between the new components stabilized their growth through consuming the other oriented crystals separated by random high-angle boundaries. When sintered into bulk, the texture of the Cu was dominated by the orientations of the abnormally grown grains. The effects of GNSs on the recrystallization of Cu foils were also Cu foil thickness dependent. For the 10 μm thick foils, the effect of the GNSs manifested after the samples were sintered to high temperatures (> 700 ℃). Instead of creating much constraint to the expansion of the adjacent Cu foils, the GNSs worked as a barrier preventing the penetration of the grown Cu grains, resulting in the stabilization of the recrystallization texture represented by the two rotated components. For the Cu/GNS composite with Cu foil thickness of 30 μm, the results evidenced that a strong Cube orientation was produced in the Cu/GNS composite instead of the individual non-Cube orientations in the pure Cu stack without GNSs. Detailed strain-state analysis of the Cu foils in the Cu/GNS composite revealed that the anisotropic expansion behavior of the GNS that is incompatible with that of the Cu foils imposed multiple elastic constraints to the foils, resulting in a biaxial isostrain state in the surface layers and a uniaxial compressive strain state in the central layer. The elastic anisotropy of Cu favors the growth of the Cube oriented grains to minimize the total strain energy. The results of the present work provide quantitative and detailed information on recrystallization of thin Cu foils and laminated composite, which contributes to deepening the understanding of recrystallization behaviour of 2D materials. The mechanisms revealed are useful for analysing abnormal grain growth in elastically strained materials and can also be applied to fabrication process for texturization or even monocrystallization
Quennouz, Nawal. "Déformation et transport d'un filament élastique dans un écoulement cellulaire visqueux". Paris 6, 2013. http://www.theses.fr/2013PA066183.
Texto completo da fonteWe study the deformation and transport of an elastic filament in a viscous cellular flow. We used a simple experimental model system consisting of a one centimeter long elastic filament with controlled geometry and elasticity and a viscous flow formed by a lattice of stagnation points. First, we characterized the buckling instability of the filament approaching a stagnation point. We have shown that this instability is controlled by the elasto-viscous number Sp which compares the relative intensity of the viscous forces deforming the filament and the elastic forces resisting the deformation. Then, we showed that the parameters related to the dynamics of the fiber transported are crucial in the prediction of the buckling probability. In parallel to the experimental analysis, numerical simulations were performed in collaboration with Michael Shelley. The characterization of the dynamical parameters and their influence on the buckling instability allows the prediction of a buckling event as a function of the elasto-viscous number Sp and the dynamical parameters linked to the transport of filament accros the lattice. Finally, we investigated how the deformation and the size of the filament affect its transport properties
Aïssani, Amel. "Sur la déformation d'un fil élastique et sur l'étude d'une équation intégro-différentielle". Metz, 2000. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/2000/Aissani.Amel.SMZ0036.pdf.
Texto completo da fonteFouad, Saïd. "Sur quelques problèmes relatifs à la déformation d'une membrane élastique par des boules rigides". Metz, 1999. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1999/Fouad.Said.SMZ9947.pdf.
Texto completo da fonteQuinson, Renaud. "Caractérisation et modélisation de la déformation non élastique des polymères amorphes à l'état solide". Lyon, INSA, 1995. http://www.theses.fr/1995ISAL0107.
Texto completo da fonte[This study deals with the non elastic deformation of amorphous polymers in the glassy state. Two components of the non elastic deformation are clearly identified through the study amorphous polymers deformation recovery. For classical experimental times, the anelastic component recovers below the glass transition temperature whereas the plastic component recovers above this temperature only. During a constant strain rate test, it is observed that the anelastic component of the applied strain can be very important. Moreover, the increase of molecular mobility, energy and density observed on deformed samples appears to be due to this anelastic component of the deformation only. The hydrostatic pressure on the stress which corresponds to the appearance of plastic deformation has been studied through several mechanical tests. Besicles, the mechanical activation of molecular motions which are responsible of the non elastic deformation bas been observed with an anti-stress relaxation test. Our various results allow us to specify and extend the description and the modelisation of the non elastic deformation which has been previously proposed by Perez et al. . This physical model simulates the non elastic behaviour of three amorphous polymers correctly, and, in particular, the amplitude and the kinetics of the activation and recovery of the anelastic deformation. This study should bring better knowledge of the behaviour laws of those polymers. ]
Porzucek, Kathy. "Approche métallurgique de la déformation non élastique de mélanges à base polypropylène renforcés élastomère". Lille 1, 1988. http://www.theses.fr/1988LIL10084.
Texto completo da fonteOuedraogo, Théodore. "La déformation élastique artérielle au cours de la flexion articulaire : aspects biomécaniques et approche physiologique". Reims, 2003. http://www.theses.fr/2003REIMM201.
Texto completo da fonteAkrout, Mohsen. "Contribution à l'étude par éléments finis du retour élastique des tôles en emboutissage et déformation plane". Lyon, INSA, 1994. http://www.theses.fr/1994ISAL0082.
Texto completo da fonteThis work has consisted to develop a software using a finite element formulation to simulate the sheet plane strain deep drawing and to obtain its springback. The updated Lagrangian formulation is used with shell finite elements in plane strain and transverse shearing. The efficiency of this element with independent degrees of freedom (two translational displacements and one rotation) has been shown. The numerical unloading problem was cleared up by introducing the plastic reversibility concept in the behaviour law integration expressed in a co-rotational reference. The tools action is introduced by an incremental penalization method coherent with the Coulomb friction law. This software was validated with experimental tests carried out in the laboratory and others in industrial factories. It allows a study of different parameters that have an effect on sheet springback after deep drawing
El, Khouzai El Mostapha. "Ecoulements transitoires en conduite élastique et viscoélastique : Influence relative de la déformation longitudinale de la paroi". Lyon, INSA, 1993. http://www.theses.fr/1993ISAL0051.
Texto completo da fonteThe study concerns the analysis of the influence on transient flows of a real pipe deformation of thin walled tubes, with longitudinal displacement in perfect and viscous fluids, A general treatment already has been developed which allows to account on one side, for the flexure and shear deformation, and on other side for the inertia of the pipe and the longitudinal deformation which will be neglected in the previous studies. The asymptotic development has been established in order to facilitate the direct analysis of flows singularities (primary wave front, diffusion front) in relation to different cases considered (Newtonian or perfect fluid, elastic or viscoelastic pipe), The general case has been treated numerically, by direct numerical inversion of the system of equations Expressed in the space transform LAPLACE-CARSON. A t ypical case has been treated concerning semi-infinite pipe fixed at the origin
Sin, Ousphea. "Étude en deux dimensions de l'effet du taux de déformation sur la limite élastique de l'acier structural". Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11237.
Texto completo da fonteCapítulos de livros sobre o assunto "Énergie de déformation élastique"
GENTILS, Aurélie, Stéphanie JUBLOT-LECLERC e Patrick SIMON. "Caractérisation des dommages d’irradiation". In Les matériaux du nucléaire sous irradiation, 273–96. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9148.ch10.
Texto completo da fonte