Literatura científica selecionada sobre o tema "Matériaux – Propriétés mécaniques – Microscopie"
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Artigos de revistas sobre o assunto "Matériaux – Propriétés mécaniques – Microscopie"
Sahi, Samira, Hocine Djidjelli, Souad Touazi e Amar Boukerrou. "Valorisation des déchets ligno-cellulosiques pour la préparation d’un nouveau matériau composite PVC/farine des noyaux de dattes". Matériaux & Techniques 109, n.º 1 (2021): 102. http://dx.doi.org/10.1051/mattech/2021014.
Texto completo da fonteGautier, R., C. Petit, V. Bolcato, E. Planus e F. Marchi. "Nouveaux travaux pratiques en nanotechnologies : étude nano-mécanique de micro/nano-objets mous/souples par AFM". J3eA 18 (2019): 1004. http://dx.doi.org/10.1051/j3ea/20191004.
Texto completo da fonteAdama, Gassama, Diouf Babacar, Ly Elhadji Babacar, Manga Moise e Ndiaye Diène. "Caractérisation des Propriétés Mécaniques et Thermiques de matériaux à base de Ciment, de Typha Domingénis et d’Argile". Journal de Physique de la SOAPHYS 3, n.º 2 (1 de novembro de 2023): 1–6. http://dx.doi.org/10.46411/jpsoaphys.2023.015.
Texto completo da fonteKoadri, Zainate, Azzedine Benyahia, Nadir Deghfel, Kamel Belmokre, Brahim Nouibat e Ali Redjem. "Étude de l’effet du temps de traitement alcalin de fibres palmier sur le comportement mécanique des matériaux à base d’argile rouge de la région de M’sila". Matériaux & Techniques 107, n.º 4 (2019): 404. http://dx.doi.org/10.1051/mattech/2019031.
Texto completo da fonteCastaing, J., e A. Dominguez Rodriguez. "Dislocations et propriétés mécaniques des matériaux céramiques : Quelques problèmes". Journal de Physique III 5, n.º 11 (novembro de 1995): 1787–93. http://dx.doi.org/10.1051/jp3:1995225.
Texto completo da fonteSerifou, Mamery Adama, Obre Sery Paul Jolissaint, Bleh Raoul Kouassi e Emeruwa Edjikémé. "Analyse physico-mécanique d’un composite paille de riz/ciment". Matériaux & Techniques 108, n.º 2 (2020): 208. http://dx.doi.org/10.1051/mattech/2020024.
Texto completo da fonteBen Salk, S., E. Pallecchi, V. Hoel e H. Happy. "Croissance et caractérisation de graphène au Pôle CNFM de Lille". J3eA 18 (2019): 1003. http://dx.doi.org/10.1051/j3ea/20191003.
Texto completo da fonteIzeddin, Ignacio, e Valentina Krachmalnicoff. "Des nanotorches pour étudier les matériaux nanostructurés". Photoniques, n.º 114 (2022): 40–44. http://dx.doi.org/10.1051/photon/202111440.
Texto completo da fonteIhamouchen, Chadia, Hocine Djidjelli, Amar Boukerrou, Françoise Fenouillot e Clair Barres. "Comportement mécanique et propriétés thermique des composites polyéthyènes renforcés par des fibres lignocellolusiques". Matériaux & Techniques 106, n.º 6 (2018): 601. http://dx.doi.org/10.1051/mattech/2018064.
Texto completo da fonteBOUTALEB, F., N. BOUTALEB, B. BAHLAOUAN e S. EL ANTRI. "Valorisation du stérile d’exploitation des phosphates au Maroc dans la fabrication de carreaux céramiques". Techniques Sciences Méthodes, n.º 3 (20 de março de 2020): 37–43. http://dx.doi.org/10.36904/tsm/202003037.
Texto completo da fonteTeses / dissertações sobre o assunto "Matériaux – Propriétés mécaniques – Microscopie"
Odoni, Ludovic. "Propriétés mécaniques et effets d'échelle". Ecully, Ecole centrale de Lyon, 1999. http://bibli.ec-lyon.fr/exl-doc/TH_T1884_lodoni.pdf.
Texto completo da fonteThis dissertation tries to conjugate the comprehension and measurement work to decrypt mechanical properties of solids at micrometric and nanometric scales. The underlying questions are both to locate the limits of bulk properties (frontier of continuous medium mechanic) when the analysis window is narrowed and furthermore to describe new properties related to the decrease in measurement scale, if any. The non-linear mechanical analysis of Intermittent Contact Mode in AFM enables the monitoring of local mechanical properties of polymer such as storage and loss modulus or adherence. The surprising result of this analysis concerns the loss modulus whose measured value is greater than the macroscopic bulk one by one order of magnitude. The nanoindentation tests operated at a constant strain rate confirm and enrich this result : a 'characteristic heterogeneity length' has been introduced to define for this material the dimension under which the mechanical response differs from the one of homogeneous matter. This concept is canonical for heterogeneous materials at micrometer scale (i. E. Polymer blends) and is extended to material which are homogeneous in composition. Beyond this characteristic length, materials can only be described through statistical means. Another development of this study concerns the macroscopic description of materials using bulk constitutive equations. A particular effort has been held to describe viscoplastic behavior of glassy polymers (PMMA and PS). The viscoplastic data obtained by nanoindentation experiments and scratch tests may be interpreted with the help of Eyring molecular theory of activation energy. The results obtained at small strain rate (<0. 1 Hz) enables the computation of an activation volume of the polymeric material (lnm3 for PMMA et 0. 4nm3 for PS). These activation volumes are in good agreement with the theoretical ones and those obtained by macroscopic analytical methods. The scratch test experimental data are showing that at high strain rate (>0. 1Hz) the viscoelastic loss in contact increases and the calculated activation volume decreases. The phenomenon is interpreted as a transition to a B type relaxation of the polymeric material. The origin of the characteristic homogeneity length is still to be enlighten. Should this be understood as an evolution of the mechanical properties due to the narrowing of the analysis window? Is this length related to intrinsic properties of surface? In this case, surface mechanical properties would thus be heterogeneous
Nounah, Hassan. "Modélisation et caractérisation des matériaux à gradient de propriétés mécaniques par des méthodes microacoustiques". Montpellier 2, 1995. http://www.theses.fr/1995MON20117.
Texto completo da fonteSong, Xinling. "Experimental characterization, modelling and simulation at the microscale of the mechanical behavior of fibre bundles". Electronic Thesis or Diss., Orléans, 2024. http://www.theses.fr/2024ORLE1014.
Texto completo da fonteThe mechanical behaviour of a fibrous reinforcement is fundamental during its shaping for the manufacturing of composite materials. To predict this behaviour, mechanical tests alone are not sufficient. It is therefore necessary to obtain a true behaviour law of the reinforcement based on the parameters of the fibrous structure.The objective of this thesis is to study the mechanical behaviour of an assembly of quasi-parallel fibers. To achieve this objective, it is essential to understand and quantify the influence of the fibrous architecture's parameters on its mechanical behaviour. A mixed experimental/numerical approach is proposed. The numerical strategy involves conducting finite element simulations using explicit dynamics, where each fiber is modelled as a B31 beam, in contact with the others. Experimentally, using assemblies of a few dozen model fibers of 500 microns, compaction/compression tests are conducted under tomography. These tests allow for the observation of the evolution of the fibrous architecture depending on the imposed load and the applied boundary conditions. Microstructure evolution indicators are then defined to analyse and process the results. A reconstruction algorithm enables the creation of a representative numerical model of the tested assembly, where each fiber is modelled by a B31 beam. The identification of the fiber's behaviour law then allows for the simulation of the tested structure. Comparisons across several types of samples validate the numerical approach, thus enabling the development of a virtual estimator that can simulate the behaviour of non-existent assemblies. Subsequently, a strategy for creating virtual fibrous architectures is developed for parametric studies. This strategy allows for the rapid creation of various architectures with controlled parameters. With all the preceding steps, a parametric study can be conducted, establishing the influence of certain parameters : initial microstructure parameters, fiber diameter, fiber/fiber friction factor, and loading path. This final step demonstrates the effectiveness of the proposed approach and also opens up numerous future perspectives
Chovelon, Eurydice. "Etude de l'influence de la microstructure, caractérisée par microscopie électronique en transmission et nano-usinage ionique "FIB", sur les propriétés mécaniques d'aciers bainitiques". Aix-Marseille 3, 2003. http://www.theses.fr/2003AIX30058.
Texto completo da fonteSince few years, new families of steels like dual-phase steels (ferrite/martensite), with interesting mechanical properties have been developed for automobile industry. Nevertheless, some applications need higher mechanical properties, upper than 800 MPa. This is why we have developed, in collaboration (TECSEN – Arcelor), new steels with multiphase microstructure microalloyed with vanadium. In order to do that, it was essential to understand the influence of both the chemistry and the thermomechanical processes on microstructure and precipitation, which determinate the mechanical properties of steels. Four bainitic steels and two simulation products have been made to understand the contribution of each constituant on mechanical properties. The principal tool employed for this work was the transmission electron microscope coupled with an EDX analyzer and an electron energy loss filter. Classical techniques of sample preparation was used and for the first time, focused ion beam FIB was also used to prepare samples. It was found that this tool has played major role to identify all the phases present in the steel. We have showed that the microstructure of these steels consists of inferior bainite containing martensite in variable amounts (4 to10 %). In all the studied steels, the bainite contains ferrite grains and globular cementite. However, the amount of vanadium carbides and intra granular cementite depends on the thermomechanical process applied. The precipitation of small intra granular cementite is present only for particular cooling speed and entry in bainitic region. In this kind of multiphase and microalloyed steels, more than the contribution of the microstructure, the vanadium carbide allowed to reach mechanical properties of about 900 MPa. To reach 1000 MPa, the fine intragranular cementite (1 to 3 nm) is absolutly necessary
Martinez, Rémi. "Modélisation multi-échelles des propriétés mécaniques d'un alliage d'aluminium de fonderie". Thesis, Paris Est, 2012. http://www.theses.fr/2012PEST1148.
Texto completo da fonteThis work highlights the results of a theoretical Al$_2$Cu particles coarsening model in a T7 thermal treated 319 aluminum alloy. As an input of the model, the experimental and discretised size distribution of the precipitates, in a 1$mu$m$^3$ representative volume element of the alloy, is used and coupled to a flux equation. The use of a numerical implicit scheme allows us to solve the problem by the inversion of a tridiagonal matrix. Thus, the evolution of the critical radius of coarsening, of the total number and of the volumical fraction of particles are modeled in a range of temperature going from 23°C to 300°C up to 1000h ageing time. Results were then compared to transmission electron microscope observations and are in good agreement with experimental measurements. Hence, the model was then coupled to a micro-mechanical model which is based on the theory of dislocations. It determines the real yield stress of the alloy generated by the interaction of the dislocations with the lattice (Peierls stress), with the precipitates (Orowan stress) and with the atoms in solid solution. Both models were then combined into a mechanical macro-scale model in order to represent the LCF behavior of the material. An elasto-viscoplastic law has been used and all the internal variables were experimentally determined using LCF stress/strain loops for the mechanical steady state. The simulation results are in good agreement with the experiments. Finally, 1D and 3D finite element computations could be run, taking into account the evolution of the microstructure during ageing and its impact on the evolution of the mechanical properties, to determine the head cylinder behavior under thermomechanical fatigue
Delmas, François. "Influence des traitements thermiques sur les propriétés mécaniques d'un alliage AIMgSiCu". Toulouse 3, 2002. http://www.theses.fr/2002TOU30141.
Texto completo da fonteTravaillot, Thomas. "Caractérisation mécanique des matériaux élastiques à l'échelle locale par microscopie à pointe vibrante : Approche multimodale et mesure de champs". Thesis, Besançon, 2014. http://www.theses.fr/2014BESA2011/document.
Texto completo da fonteThis work proposes an improvement of the Scanning Microdeformation Microscope (SMM), a scanningprobe microscope, for the mechanical elastic characterization of materials at local scale. It demonstratesthat using n > 2 SMM resonance frequencies allows to decouple Young’s modulus andPoisson’s ratio values for an isotropic material.The mechanical description of the resonator has been enriched in order to allow for an accuratemodeling over a wide frequency range. Procedures have been developed to identify the modellingparameters and the elastic constants of the materials from n > 2 resonant frequencies. Finally, theseprocedures have been applied to the characterization of various materials at local scale in order tovalidate the method and to present possibilities and limits.To improve robustness and move towards the characterization of anisotropic materials, a polarizedlightimaging interferometer was developed to measure the rotation field of reflecting surfaces in aparticular direction. The sensitivity to the rotation originates from a homemade birefringent prism withuniaxial gradient of refractive index. This system is able to measure a localized rotation field as it isinduced in the vicinity of the tip of the SMM. Its interest is also demonstrated in cases in which scaleeffects make the rotation measurement preferable to the out-of-plane displacement measurement
Keller, Clément. "Etude expérimentale des transitions volume/surface des propriétés mécaniques du nickel polycristallin de haute pureté". Phd thesis, Université de Caen, 2009. http://tel.archives-ouvertes.fr/tel-00403216.
Texto completo da fonteWahyudi, Herman. "Étude des propriétés mécaniques des matériaux argileux en relation avec leur organisation à différentes échelles". Châtenay-Malabry, Ecole centrale de Paris, 1991. http://www.theses.fr/1991ECAP0205.
Texto completo da fonteMegevand, Benjamin. "Contribution of atomic force microscopy to local mechanical characterization of polymer materials". Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI023/document.
Texto completo da fonteThis thesis work aims to show how nanomechanical characterizations in AFM can provide a better understanding of structure-properties relationships in polymers. In this context, the technique itself and the associated theoretical basis are first analyzed to implement a robust methodology in order to perform reproducible, quantitative measurements. Two main studies are carried out around a common topic: the understanding of the interactions between biopolymers and ionic liquids (ILs). First, the compatibilization of PBAT/PLA blends by two different ILs (namely il-Cl and il-TMP) is studied. Adhesion and local modulus mappings evidence the resulting microstructures, and highlight that the compatibilization mainly results from a modification of the PBAT/PLA interface, becoming a coherent interphase. This is due to specific interaction with the cations and the anions of each IL, which are preferentially located at those interphases. The second study is more specifically about the understanding of the modification of semicrystalline PBAT by the addition of small amounts of the same ionic liquids. While il-TMP forms dissipative nodules dispersed into the matrix with a cohesive interphase between both, il-Cl, miscible into the amorphous phase of PBAT, amplifies the chain mobility in the bulky MAF (i.e. Mobile Amorphous Fraction) and hinders it in the confined RAF (i.e. Rigid Amorphous Fraction), leading to interesting macroscopical properties modifications. More than showing some interesting capabilities of ILs as additives in polymers, those results also show an outstanding potential of AFM nanomechanical mappings for the in-deep understanding of structure-properties relationships in materials
Livros sobre o assunto "Matériaux – Propriétés mécaniques – Microscopie"
Berthelot, J. M. Matériaux composites: Comportement mécanique et analyse des structures. Paris: Masson, 1992.
Encontre o texto completo da fonteGrosmaire, Jacques. Application de la microscopie acoustique à l'étude des propriétés physiques des matériaux. Grenoble: A.N.R.T. Université Pierre Mendès France Grenoble 2, 1985.
Encontre o texto completo da fonteDoubrère, Jean-Claude. Résistance des matériaux: Cours et exercices corrigés. Paris: Eyrolles, 2010.
Encontre o texto completo da fonteC, Cranmer David, e Richerson David W. 1944-, eds. Mechanical testing methodology for ceramic design and reliability. New York: Marcel Dekker, 1998.
Encontre o texto completo da fonteHosford, William F. Mechanical behavior of materials. 2a ed. New York: Cambridge University Press, 2010.
Encontre o texto completo da fonteSaid, Jahanmir, ed. Friction and wear of ceramics. New York: M. Dekker, 1994.
Encontre o texto completo da fonteClaude, Bathias, e Pineau A, eds. Fatigue of materials and structures. Hoboken, NJ: ISTE/John Wiley, 2010.
Encontre o texto completo da fonteK, Kalpakides Vassilios, Maugin G. A. 1944- e Conference on EUROMECH Solid Mechanics (5th : 2003 : thessaloniki, Greece), eds. Configurational mechanics: Proceedings of the Configurational Mechanics Symposium : held within the 5th EUROMECH Solid Mechanics Conference : 17-22 August, 2003, Thessaloniki, Greece. Leiden: A.A. Balkema, 2004.
Encontre o texto completo da fonteMenard, Kevin P. Dynamic Mechanical Analysis. London: Taylor and Francis, 2008.
Encontre o texto completo da fonteKausch, Hans-Henning, Nicole Heymans, Pierre Decroly e Christopher John Plummer. Traité des matériaux, numéro 14 - Matériaux polymères : Propriétés mécaniques et physiques. Presses Polytechniques et, 2001.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Matériaux – Propriétés mécaniques – Microscopie"
BÉRERD, Nicolas, e Laurent PETIT. "Le graphite nucléaire". In Les matériaux du nucléaire sous irradiation, 129–54. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9148.ch4.
Texto completo da fontePAREIGE, 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.
Texto completo da fonteALLION-MAURER, Audrey. "Métaux et alliages dans les environnements alimentaires". In Contrôle et prévention des risques biologiques associés à la contamination des aliments, 71–86. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9125.ch4.
Texto completo da fonteLEHUÉDÉ, Patrice. "Généralités". In Le plomb dans les matériaux vitreux du patrimoine, 9–24. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9076.ch1.
Texto completo da fonteDEBEAUFORT, Frédéric. "Papiers et cartons". In Matériaux et procédés d’emballage pour les industries alimentaires, cosmétiques et pharmaceutiques, 41–67. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9039.ch2.
Texto completo da fonteEtienne, Serge, e Laurent David. "Chapitre 9. Propriétés mécaniques ultimes des matériaux polymères à l’état solide". In Introduction à la physique des polymères, 297–350. Dunod, 2012. http://dx.doi.org/10.3917/dunod.etien.2012.01.0297.
Texto completo da fonte