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Artykuły w czasopismach na temat "Composites à fibres – Matériaux – Fatigue"
Bilba, Ketty, i Marie-Ange Arsène. "Etude de matériaux composites fibres de dictame/ciment". Revue des composites et des matériaux avancés 17, nr 3 (21.12.2007): 327–50. http://dx.doi.org/10.3166/rcma.17.327-350.
Pełny tekst źródłaBourmaud, Alain, Antoine Le Duigou i Christophe Baley. "Recyclage des matériaux composites renforcés par des fibres végétales". Revue des composites et des matériaux avancés 20, nr 3 (31.12.2010): 353–72. http://dx.doi.org/10.3166/rcma.20.353-372.
Pełny tekst źródłaChahid, M., M. El Ghorba, M. Benhamou i Z. Azari. "Optimisation fiabiliste de l'endommagement en fatigue d'un matériau composite fibres de verre-époxyde". Matériaux & Techniques 84, nr 11-12 (1996): 13–17. http://dx.doi.org/10.1051/mattech/199684110013.
Pełny tekst źródłaKoadri, Zainate, Azzedine Benyahia, Nadir Deghfel, Kamel Belmokre, Brahim Nouibat i 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, nr 4 (2019): 404. http://dx.doi.org/10.1051/mattech/2019031.
Pełny tekst źródłaBathias, C. "La fatigue des matériaux composites à hautes performances". Matériaux & Techniques 78, nr 5 (1990): 11–17. http://dx.doi.org/10.1051/mattech/199078050011.
Pełny tekst źródłaJuarez, Cesar, Gerardo Fajardo i Pedro Valdez. "Caractérisation microstructurale des fibres naturelles pour des matériaux composites à base de ciment". Canadian Journal of Civil Engineering 36, nr 3 (marzec 2009): 449–62. http://dx.doi.org/10.1139/l09-009.
Pełny tekst źródłaDjoudi, Tarek, Mabrouk Hecini, Daniel Scida, Youcef Djebloun i Belhi Guerira. "Caractérisation physique et mécanique du bois et des fibres issus d’une palme mûre de palmier dattier". Matériaux & Techniques 106, nr 4 (2018): 403. http://dx.doi.org/10.1051/mattech/2018056.
Pełny tekst źródłaNardin, Michel. "Interfaces fibre-matrice dans les matériaux composites. Applications aux fibres végétales". Revue des composites et des matériaux avancés 16, nr 1 (23.04.2006): 49–62. http://dx.doi.org/10.3166/rcma.16.49-62.
Pełny tekst źródłaRedjel, Bachir. "La ténacité des matériaux composites a fibres courtes orientées au hasard". Matériaux & Techniques 79, nr 11 (1991): 21–27. http://dx.doi.org/10.1051/mattech/199179110021.
Pełny tekst źródłaCheour, Khouloud, Mustapha Assarar, Daniel Scida, Rezak Ayad i Xiao-Lu Gong. "Identification des coefficients d’amortissement de matériaux composites à fibres de lin". Revue des composites et des matériaux avancés 26, nr 3-4 (30.12.2016): 367–82. http://dx.doi.org/10.3166/rcma.26.367-382.
Pełny tekst źródłaRozprawy doktorskie na temat "Composites à fibres – Matériaux – Fatigue"
Coutand, Bernard. "Etude de la déformabilité à haute température de matériaux composites à matrice d'alliage léger renforcée par des fibres courtes". Bordeaux 1, 1991. http://www.theses.fr/1991BOR10508.
Pełny tekst źródłaLegrand, Nicolas. "Fatigue de composites à matrice métallique base titane à renfort unidirectionnel de fibres SiC". ENSMP, 1997. http://www.theses.fr/1997ENMP0844.
Pełny tekst źródłaThe primary objective of this work is to understand the physical origin of fatigue fracture at high temperature of metal matrix composites SCS6/Ti6-4, SM1140+/Ti6242 and SCS6/Ti6242. The fatigue behaviour of the material is studied in longitudinal (loading parallel to the fiber axis) and transverse (loading perpendicular to the fiber axis) orientations. In longitudinal fatigue, performed at 450 and 550°C on SCS6/Ti6-4 and SM1140+/Ti6242, three major damage mechanisms were identified : the global load transfer from matrix to fibers due to matrix cyclic softening (mechanism n°1), the local interfacial degradation close to broken (mechanim n°2) and the infuence of environment on mechanical fiber properties (mechanism n°3). Damage kinetics of these different mechanisms were identified experimentally using microscopic observations and acoustic emisson technic. A micromechanical modelling, taking into account of the statistical behaviour of fibers has confirmed and quantified influence of these mechanisms on fatigue fracture of the composite : with this model, it was demonstrated that for sufficiently high fatigue loadings (stress up to 1000 MPa), the local interfacial degradation near fiber failures may control fatigue life of the composite. At last, based on experimental acoustic emissions results, this modeling enables to predict both damage kinetics and rupture in fatigue. It is thus an interesting numerical tool to improve and optimize composite fatigue properties. As far as the transverse fatigue is concerned, it was determined in isothermal (at 600°C) and in non isothermal (between 200 and 600°C) conditions. In that orientation, damage mechanisms are due to interfacial debondings and slidings and oxidation of the carbon interface. A simple one dimensionnal "3 bars" model has been formulated (taking into account matrix viscoplasticity). It has demonstrated that cyclic viscoplasticity plays a key role in fatigue fracture along this orientation
Hunault, Patrick. "Contribution à l'évaluation de l'endommagement par fatigue de composites unidirectionnels carbone-époxy". Toulouse, INPT, 1990. http://www.theses.fr/1990INPT022G.
Pełny tekst źródłaGoumghar, Amirouche. "Élaboration et étude des performances dynamiques de composite bio-sourcés à architecture hybride lin—verre". Electronic Thesis or Diss., Reims, 2023. http://www.theses.fr/2023REIMS002.
Pełny tekst źródłaThe use of natural fibre-reinforced composite materials is growing in various sectors such as automotive and packaging. However, the problem of their sensitivity to humidity still hinders their use in applications exposed to extreme environmental conditions. Therefore, the hybridization of natural fibres with synthetic fibres can constitute a promising way to improve some properties of natural fibre-reinforced composites. It is in this context that the present doctoral work is situated. It presents an experimental analysis of the tensile-tensile fatigue and low-energy impact fatigue behaviour of non-hybrid and hybrid flax-glass/epoxy laminates. An investigation of their durability after water aging until saturation is also presented. To this end, several plates of non-hybrid and hybrid flax-glass/epoxy composites have been fabricated by the vacuum infusion process. First, we carried out a monotonic tensile characterization of the studied composites and evaluated the kinetics of moisture diffusion within these materials. The results of these tests show that the addition of glass layers to the flax/epoxy laminate improves its mechanical properties and also reduces its mass of water absorbed at saturation. Then, cyclic fatigue tests were performed on unaged and aged composite specimens. These fatigue tests were coupled with the acoustic emission technique in order to identify the damage mechanisms and their chronology of appearance. To evaluate the effect of fatigue loading on the loss of stiffness, hysteresis loops and the damping factor of non-hybrid and hybrid composites were investigated. The analysis of the acoustic signals makes it possible to identify three classes of acoustic signals in all the studied composites. These three classes are attributed to the main damage mechanisms such as matrix cracking, fibre/matrix decohesion and fibre breakage. This attribution is supported by microscopic observations obtained using a scanning electron microscope. Finally, low-energy impact fatigue tests were performed on unaged and aged composite samples. The obtained results clearly show that the flax/epoxy composite absorbs a large part of the impact energy and transforms it into elastic energy. However, the glass/epoxy laminate consumes this energy in damage and breakage. In addition, water aging weakens all the studied composites and reduces their resistance to impact fatigue
Al-Maghribi, Abir. "Comportement des matériaux composites à fibres courtes : applications à l'impact basse vitesse". Toulouse 3, 2008. http://thesesups.ups-tlse.fr/337/.
Pełny tekst źródłaThe objective of this work is to investigate the behaviour of a short fiber composite material subjected to low speed impacts. The studied material is a SMC composite material realized by compressive moulding. A first part of the study gives elastoplastic with damage behaviour of this type of material. These laws were coded into the user defined material subroutine of (LS-DYNA3D and EUROPLEXUS). Characterizations tests of the SMC-R were realized in order to identify non linear behaviour. The tests realized are tensile test, compressive test, shearing test and dynamic compressive test. The tests have allowed us to identify damage behaviour. The obtained behaviour is necessary for the study of impact. The second part of the study presents the experimental analysis of the impact. The impacts were realized for various energies (4, 8, 12, 16 J). The defects after impact tests are controlled by RX testing, US control, and microscopic observation, in the aim to analyze and quantify the defects create during the impacts. These analyses showed a conical defect in the thickness of plates. Finally a comparison is made between the results obtained experimentally and those obtained from an explicit numerical simulation. This comparison shows that the numerical simulations of impact behaviour are in good agreement with the experimental results. The results globally show a global correlation for the load-displacement behaviour and a local correlation for the defect size
Dalmaz, Anne. "Etude du comportement en fatigue cyclique a hautes températures du composite tisse fibre de carbone/matrice carbure de silicium 2,5D C/SiC". Lyon, INSA, 1997. http://www.theses.fr/1997ISAL0085.
Pełny tekst źródłaThis study investigates the mechanical behavior of a 2. 5D woven multi-layered carbon fiber composite with a silicon carbide matrix, manufactured by the SEP. This material is used in the aerospace industry for the manufacture of parts operating under extreme conditions (very high temperature, high loading stress and a strongly oxidizing atmosphere). It is, therefore, essential to establish it is mechanical behavior under cyclic loading at elevated temperature. The aim of this study is therefore to define the damage mechanism of the 2. 5D C/SiC composite controlling the mechanical behavior of the material subjected to cyclic loading over a range of temperatures, under an inert atmosphere. A finite element model was developed to explain the crack networks operating during loading at various temperatures. A new technique, based on the method of homogenization, was established to model the Young's modulus of composite ceramic/ceramic weaves. This technique was employed, along with our other results, to improve the understanding of the damage sequence during cyclic fatigue. The evaluation of the mechanical behavior of the composite with increasing temperature was found to change significantly at the manufacturing temperature of the composite (1000°C). For temperatures below 1000°C, the mechanical behavior is controlled by the residual thermal stresses and crack closing behavior. The composite shows improved toughness, modulus, and cycles to failure, as the temperature increases. The increase in modulus observed during cyclic loading at elevated temperature results from crack closing caused by localized deformation of the material. For temperatures above 1000°C the mechanical behavior is controlled by temperature dependent mechanisms, as yet, not well understood
Nouri, Hedi. "Modélisation et identification de lois de comportement avec endommagement en fatigue polycyclique de matériaux composites à matrice thermoplastique". Paris, ENSAM, 2008. http://www.theses.fr/2008ENAMA015.
Pełny tekst źródłaThe present work is a contribution to the phenomenological modelling of fatigue non-linear cumulative diffuse damage in short glass fibre reinforced thermoplastic matrix composites. In such materials, fatigue damage kinetic exhibits three stages, namely: i) material softening and damage initiation, ii) coalescence and propagation of micro-cracks, iii) macroscopic cracks propagation and material failure. The proposed model is built in the framework of the continuum damage mechanics and aims at predicting these three stages of the damage evolution. It extends the previous approach and takes into account the important stiffness reduction observed during the first damage stage. The above is modelled by the integration of a combined Norton-like power law and an exponential law expressing the damage rates as a function of the associated thermodynamic dual forces. The model has been formulated in terms of strain energy, so that makes easy its numerical implementation into the finite element code Abaqus/Standard through a user defined material subroutine UMAT. Damage evolutions predicted by the developed model reproduce well those observed for this kind of composites under cyclic loading. Two identification strategies are developed. The first identification strategy based on homogeneous tensile fatigue tests performed in the longitudinal and transversal directions of a PA6-GF30 and a PP-GFL40. A second identification strategy based on the use of optical whole-field displacement/strain measurements by digital image correlation coupled to an inverse method from one single coupon
Duboquet, Emilie. "Vers une approche locale du phénomène de fatigue mécanique. Application aux matériaux et aux structures en composites à fibres continues". Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCK021/document.
Pełny tekst źródłaThe original concept of mechanical fatigue was linked to the failure of structures and was treated at first within the framework of Fracture Mechanics. Models developed to explain this phenomenon must therefore be able to be applied to structures: changing the structure means changes to the model and its identification. It is therefore judicious to develop models capable of treating both the damage processes and also able to be used within a local framework: to this end a method based on Damage Mechanics seems appropriate. This approach has long been employed and requires only the identification of damage processes at the level of the RVE (Representative Volume Element) to be used for any structural geometry. However incoherencies can be encountered such as when the number of load cycles applied to the macroscopic structure does not reflect the internal loading kinetics, leading, for example to effects due to the frequency of loading. This can be found to influence the laws governing the evolution of damage phenomena at the local level, leading to wrong conclusions. Nevertheless this is not inevitable if precautions are taken. This goal of this study has been to introduce rigorous concepts of mechanical fatigue in the local framework of Damage Mechanics and to carry out a local approach to fatigue. The ultimate aim has been to be able to carry out calculations on structures subjected to fatigue loading with the same degree of finesse as under quasi-static conditions.An initial step has been to reveal the shortcomings of existing models and show that at present no model of a structure subjected to fatigue using Damage Mechanics is perfectly satisfactory.As a result the notion of the fatigue problem has been formulated and used as a base for defining a suitable framework for developing a local approach to fatigue.A deliberate goal has been to avoid constructing incremental fatigue laws but to introduce the real effects of loading cycles deduced from the evolution of behavioural laws obtained in quasi-static tests, requiring rules of linearization and a clear definition of the adopted approach.Benefiting from specific problems involving fatigue damage and applying them to this approach, a rigorous description of the phenomena and the identification of a fatigue damage model applied to intra-laminar cracking has been developed. The laws governing the local approach have been described for the case of a structure subjected to fatigue. It has been shown that for a given case of a material and damage processes the proposed approach applied to a structure subjected to fatigue loading can be modelled with the same ease as resolving the effects of quasi-static loading.This study has created very general foundations for a new approach to understanding the fatigue of structures. It clarifies the fatigue concept by defining it within a tightly defined framework with the goal of formulating a local approach to fatigue applied to the calculation of structures subjected to fatigue loading. It has been successfully used for a particular configuration. However for the present it is difficult to assert that it can be used as a local approach for all fatigue phenomena, in all materials and for the most general types of loading. The study has not had the ambition of providing a solution to all these cases but rather to open a new approach to resolve other cases and possibly to provide a guideline to achieving a truly local approach to a general solution of the fatigue of structures
Pires, Isabelle. "Vieillissement dans l'antigel de matériaux composites polyamide-6,6 renforcé par des fibres de verre courtes". Montpellier 2, 2000. http://www.theses.fr/2000MON20124.
Pełny tekst źródłaDespringre, Nicolas. "Analyse et modélisation des mécanismes d'endommagement et de déformation en fatigue multiaxiale de matériaux composites : polyamide renforcé par des fibres courtes". Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0058/document.
Pełny tekst źródłaThe current work focuses on a new micromechanical high cycle fatigue visco-damage model for short glass fiber reinforced thermoplastic composites, namely: PA66/GF30. This material, extensively used for automotive applications, has a specific microstructure which is induced by the injection process. The multi-scale developed approach is a modified Mori-Tanaka method that includes coated reinforcements and the evolution of micro-scale damage processes. Their description is based on the experimental investigations of damage mechanisms previously performed by the team. Damage chronologies have been proposed involving three different local degradation processes: fiber-matrix interface debonding/coating degradation, matrix microcracking and fiber breakage. Their occurrence strongly depends on the microstructure. The developed model integrates these damage kinetics and accounts for the complex matrix viscoelasticity and the reinforcement orientation distributions induced by the process. Each damage mechanism is introduced through an evolution law involving local stress fields computed at the microscale. The developed constitutive law at the representative volume element scale is implemented into a C++ scientific library, SMART+, and is designed to work with Finite Element Methods. The model identification is performed via reverse engineering, taking advantage of the multiscale experimental results: in-situ SEM tests as well as quantitative and qualitative μCT investigations
Książki na temat "Composites à fibres – Matériaux – Fatigue"
(Firm), Knovel, red. Fatigue life prediction of composites and composite structures. Oxford: Woodhead Publishing, 2010.
Znajdź pełny tekst źródłaA, Kardomateas George, red. An introduction to fatigue in metals and composites. London: Chapman & Hall, 1996.
Znajdź pełny tekst źródłaNatural fibre reinforced polymer composites: From macro to nanoscale. Paris: Éd. des Archives Contemporaines, 2009.
Znajdź pełny tekst źródłaS, Kaith B., Kaur Inderjeet i SpringerLink (Online service), red. Cellulose Fibers: Bio- and Nano-Polymer Composites: Green Chemistry and Technology. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2011.
Znajdź pełny tekst źródłaFailure of Fiber-Reinforced Polymer Composites. Taylor & Francis Group, 2021.
Znajdź pełny tekst źródłaThariq, Mohamed, K. Jayakrishna i M. Rajesh. Failure of Fiber-Reinforced Polymer Composites. Taylor & Francis Group, 2021.
Znajdź pełny tekst źródłaSultan, Mohamed Thariq Hameed, K. Jayakrishna i M. Rajesh. Failure of Fiber-Reinforced Polymer Composites. Taylor & Francis Group, 2021.
Znajdź pełny tekst źródłaASTM Committee D-30 on High Modulus Fibers and Their Composites (Corporate Author), Astm Committee E-24 on Fracture Testing (Corporate Author), Symposium on Composite Materials: Fatigue and Fracture (Corporate Author), H. Thomas Hahn (Editor), Paul A. Lagace (Editor) i T. Kevin O'Brien (Editor), red. Composite Materials: Fatigue and Fracture (Astm Special Technical Publication// Stp). American Society for Testing & Materials, 1989.
Znajdź pełny tekst źródłaVassilopoulos, Anastasios P. Fatigue Life Prediction of Composites and Composite Structures. Elsevier Science & Technology, 2019.
Znajdź pełny tekst źródłaVassilopoulos, Anastasios P. Fatigue Life Prediction of Composites and Composite Structures. Elsevier Science & Technology, 2019.
Znajdź pełny tekst źródłaCzęści książek na temat "Composites à fibres – Matériaux – Fatigue"
Abdin, Y., A. Jain, S. V. Lomov i V. Carvelli. "Fatigue analysis of carbon, glass and other fibres". W Fatigue of Textile Composites, 85–104. Elsevier, 2015. http://dx.doi.org/10.1016/b978-1-78242-281-5.00005-5.
Pełny tekst źródłaVan Paepegem, W. "Fatigue damage in structural textile composites". W Fatigue Failure of Textile Fibres, 201–41. CRC Press, 2009. http://dx.doi.org/10.1201/9781439829127.ch10.
Pełny tekst źródła"Chapitre 4 Les matériaux composites à base de fibres". W Les enjeux des nouveaux matériaux textiles, 85–118. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1245-5-006.
Pełny tekst źródła"Chapitre 4 Les matériaux composites à base de fibres". W Les enjeux des nouveaux matériaux textiles, 85–118. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-1245-5.c006.
Pełny tekst źródłaVan Paepegem, W. "Fatigue damage in structural textile composites: testing and modelling strategies". W Fatigue Failure of Textile Fibres, 201–41. Elsevier, 2009. http://dx.doi.org/10.1533/9781845695729.2.201.
Pełny tekst źródłaStreszczenia konferencji na temat "Composites à fibres – Matériaux – Fatigue"
Le Toulouzan, J. N., i D. Wysoczanski. "Diffusion multiple de la lumière : application à l'orientation de fibres dans des matériaux composites". W Optique instrumentale. Les Ulis, France: EDP Sciences, 1997. http://dx.doi.org/10.1051/sfo/1997009.
Pełny tekst źródłaHerszberg, Israel, Michael K. Bannister, Henry C. H. Li, Ben Qi i Jane Marsden. "Durability under fatigue loading of optical fibres applied to fibre reinforced plastic composites". W Third European Workshop on Optical Fibre Sensors. SPIE, 2007. http://dx.doi.org/10.1117/12.738395.
Pełny tekst źródłaSteen, Marc, i José-Lorenzo Vallés. "Time and Cycle Dependence in High Temperature Fatigue of Ceramic Matrix Composites". W ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-532.
Pełny tekst źródłaEbna Hai, Bhuiyan Shameem Mahmood, i Markus Bause. "Finite Element Approximation of Wave Propagation in Composite Material With Asymptotic Homogenization". W ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26314.
Pełny tekst źródłaEbna Hai, Bhuiyan Shameem Mahmood. "Numerical Approximation of Fluid Structure Interaction (FSI) Problem". W ASME 2013 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fedsm2013-16013.
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