Academic literature on the topic 'Aéronautique – Essais de comportement au feu'
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Journal articles on the topic "Aéronautique – Essais de comportement au feu":
GUILLAUME, E., and C. YARDIN. "Calcul de l’incertitude d’étalonnage des radiomètres utilisés dans des essais de comportement au feu des matériaux." Revue française de métrologie, no. 32 (November 25, 2013): 49–58. http://dx.doi.org/10.1051/rfm/2012014.
GUILLAUME, Eric. "Essais normalisés de comportement au feu." Essais normalisés, développement et sécurité des plastiques, November 2018. http://dx.doi.org/10.51257/a-v2-am3540.
GUILLAUME, Eric. "Essais de comportement au feu dans les transports." Sécurité et gestion des risques, September 2018. http://dx.doi.org/10.51257/a-v2-se3255.
GUILLAUME, Eric. "Essais de comportement au feu dans les transports." Sécurité et gestion des risques, January 2010. http://dx.doi.org/10.51257/a-v1-se3255.
Dissertations / Theses on the topic "Aéronautique – Essais de comportement au feu":
Victor, Clément. "Etude du comportement au feu d'assemblages titane-composite pour l'aéronautique." Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMIR38.
The development of increasingly lightweight aircraft with greater use of carbon fibre-reinforced polymer matrix composite parts raises a number of questions about on-board safety, particularly in terms of how materials and structures behave when exposed to fire. If a fire occurs in the engine environment of an aircraft, the materials constituting the aerostructures are subjected to high temperatures and must therefore meet safety requirements. Organic matrix composites have very complex thermal, chemical and mechanical behaviour that, when combined with very hot metal parts, could compromise the fireproofing capability of these structures. Thus, the major ambition of this thesis work is to gain a clearer understanding on the fire behaviour of titanium-composite assemblies
Schuhler, Eliot. "Dégradation des matériaux composites sous l'effet d'une flamme : application à la réaction aux feux des composites utilisés pour les transports et l'énergie Behaviour of aeronautical polymer composite to flame: a comparative study of thermoset- and thermoplastic-based laminate." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMIR27.
Carbone fibers reinforced polymers offer many advantages in terms of weight, fatigue resistance or corrosion in the aerospace industry. However, the use of new materials such as thermosetting matrix composites requires a significant effort of development, testing and validation. In particular in the field of fire resistance. This work focuses on the experimental characterization of fire resistance for different types of composite materials using a flame burner. The first part of the study deals with the characterization of the heat flux during the flame impingement. In a second step, the response to this thermal stress is measured for different composite materials. For both parts of this study, the experimental results are compared to the results obtained from numerical simulations with OpenFoam
Bouchard, Jonas. "Développement de nouvelles fibres thermostables fonctionnelles chargées en nanotubes de carbone pour des matériaux composites structuraux dans des applications aéronautiques et ferroviaires." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10052/document.
This study falls within the framework of the European project IMS&CPS (Innovative Material Synergies & Composite Processing Strategies) and aims at developing new carbon-nanotubes-based thermostable polyethersulfone (PES) fibres. The main goal of this project is the alignment, orientation and integration of carbon nanotubes (CNT) in structural composite materials in order to obtain improved mechanical, thermal and electrical properties, for shielding against electromagnetic interference (EMI) and protection against lightning strike. Using CNT as conductive fillers allows the improvement of electrical conduction inside the fibres and then in the composites by the fibres’ dissolution and the CNT migration in the epoxy composite matrix. A first part focuses on the conductibility and the fire behaviour of the nanocomposites PES/CNT. In a second part, melt and wet spinning were studied as methods for producing nanocomposite fibres. To process PES/CNT by melt spinning it was necessary to add a plasticizer and adapt the heating panels, and this allowed PES melt-spun fibres containing up to 1.5 wt. % CNT to be obtained. CNT pre-orientation and alignment in the production axis of the fibres was also noticed. Then, a weaving process permitted CNT orientation in different directions. Using the wet spinning process, a higher CNT content (2 wt. %) was incorporated in the PES fibres. An electrical percolation threshold of around 1 wt. % CNT incorporated in the PES wet-spun fibres was reached. In both spinning methods, a correlation between processing, morphologies, mechanical and electrical properties of the elaborated fibres was established. The evolution of the fibres’ morphologies and electrical properties after their dissolution in epoxy resins is also mentioned and reveals a significant improvement of their electrical conductivity in the composite matrix
Márquez, Costa Juan Pablo. "Caractérisation et modélisation des interfaces dans les composites organiques stratifiés à haute température : Application à la tenue au feu des structures aéronautiques PhyFire LOT 2 - Développement de modèles de comportement du composite Caractérisation en température de la ténacité en mode II des interfaces des CMO en utilisant l’effet Joule Caractérisation du comportement visqueux des interfaces CMO et influence sur la propagation de délaminage Convention PhyFIRE 2 - LOT 2 : Développement d’un cadre de modélisation pour les matériaux composites Durabilité des matériaux composites en conditions extrêmes : vers la prédiction des propriétés de tenue au feu Durability of Composite Materials under Severe Temperature Conditions : Influence of Moisture Content and Prediction of Thermo- Mechanical Properties During a Fire Towards the Prediction of Sandwich Composites Durability in Severe Condition of Temperature : A New Numerical Model Describing the Influence of Material Water Content during a Fire Scenario." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2021. http://www.theses.fr/2021ESMA0004.
Within the framework of the fire resistance of composite materials, it is necessary to assess the degradation of their thermal and mechanical properties due to mass losses, matrix cracking and/or delamination cracks. Nevertheless, few studies in the literature about the temperature resistance of aeronautical composites concern the mechanical behaviour and the rupture of interfaces before any thermal degradation,subject which is the main topic of this work. Thus, the objective is to propose a failure model concerning both the delamination crack initiation and growth under thermomechanical loads. Much of this work has focused on the characterisation of interface properties using an analysis of mode II crack propagation tests for Joule heated specimens. These numerical analyses show that the ply behaviour does not explain the macroscopic pseudo-ductile response observed experimentally. Thus, a test-calculation dialog method, comparing the kinematic fields measured by digital images correlation and those simulated by finite elements, underlines the importance of the viscous behaviour at the interface scale. By a similar FEMU approach the parameters of a cohesive-type fracture law have been identified in temperature and taking into account the different sources of uncertainty. This work highlights the similarity between plane and out-of-plane shearing, both on behaviour and on failure. In parallel, the analysis of temperature resistance tests by laser impact made it possible to establish a crack initiation criterion by a coupled stress and energy approach. A comparison of this criterion with the parameters of the cohesive zone law previously identified makes it possible to discuss about the modeling scale of the interface
Abdallah, Rafik. "Comportement au feu des briques de terre comprimée." Thesis, Pau, 2021. http://www.theses.fr/2021PAUU3065.
The present PhD thesis addresses the high temperature behavior of a compacted raw earth material and a cement stabilized earth material, both of which are likely to be used in fire-prone buildings.A complete campaign of laboratory tests was carried out on the two materials. Residual tests, which included mechanical, thermal and permeability tests were performed after slowly heating at a rate of 2 °C.min-1 using an electric furnace to attain temperatures of 80 °C, 120 °C, 200 °C, 350 °C, 450 °C and 600 °C. Then, fire tests were performed, which allowed for the exposure of these materials' bricks to a high heating rate using a mobile gas furnace designed to follow an ISO 834-1 fire curve in order to simulate a real-life fire accident in a building.Besides the effect of the material composition on the high temperature behavior, the effect of the water content on this behavior was also studied after subjecting the samples of the two materials to different relative humidities (RH): dry condition, 50 % RH, 75 % RH and 100 % RH, at an ambient temperature of 23 °C. As a result, the behavior of these materials is better characterized, allowing for a better understanding of real-world applications in a variety of environments.The material's composition and water content influence significantly its behavior at high temperatures. Following the fire tests, the samples were classified into two categories based on their composition and water state: thermally stable and unstable. The observed differences in behaviors have been ascribed to thermomechanical phenomena. They are caused, on the one hand, by the formed thermal gradients induced as a result of the consequent thermal stresses, which decrease as the water content increases, and, on the other hand, by the intrinsic mechanical properties of the materials (which decrease with the water content). These factors were subsequently demonstrated to play a major role in the material's fire behavior and load-bearing capacity at high temperatures, as assessed by mechanical loading of the samples during fire tests
Fernandez, Cristian. "Caractérisation et modélisation du comportement au feu de poutres en bois lamellé collé." Nancy 1, 2006. http://www.theses.fr/2006NAN10099.
Wood is increasingly being used as building rnaterial due to its specific characteristics, such as its high insulating capacity given by its low thermal conductivity. Nowadays, wood may be considered as an answer to the cUITent energy cri sis, resulting in cost reduction in energy consumption. Wood is classified as a combustible material, which makes us doubt about its structural tire resistance. However, contrarily to !bis idea and spite of its classification, wood provides an excellent tire resistance. It bas long been recognized that under a tire situation, a wood structure loses resistance more slowly than a steel or concrete structure. The particular context of this study relates to tire applied to glulam. Currently, the most used adhesives in the glulam industry are: Resorcinol-Formaldehyde, Phenol-Resorcinol-Formaldehyde, Urea-Formaldehyde, and MelamineUrea-Formaldehyde. The main problem arising from these adhesives is their two-component fonnulation (adhesive and hardening), making their usage more complicated. Moreover, wood bas to be dried before gluing, which in turn increases the costs and building time. Ln order to solve these inconveniences, there are currently other solutions in the market, e. G. Polyurethane adhesives consist of only one liquid component applied directly on wood even if it is wet. However, this kind of adhesive shows a high level of creep at high temperatures, which rnay lead to a dangerous situation during a tire. Ln the development of !bis thesis, we characterized the behavior of structural polyurethane adhesives under tire, considering as parameter for comparison the most used adhesives, i. E. Phenol-Resorcinol-Formaldehyde and MelamineUrea-Formaldehyde. As a first stage we characterized the different adhesives subject to high temperatures (between 30°C and 250 °C). As a second stage we established the tire behavior of glulams under the different studied adhesives. For !bis, we chose to perfonn tests with a radiant panel at constant flow (15, 25, 45 and 60 kW/m2). The main result was that the kind of adhesive used in glulams bas no influence on tire resistance. The final stage of fuis study consisted on modeling the different occurring phenomena: A thermal model through a finite element allowed to follow-up in time the temperature distribution in the glulam transversal section subject to a heat flow. By integrating the stiffness database and the elasticity modulus resulting from the creep tests, we have been able to predict the creep behavior and failure time for a glulam subject to a temperature flow that simulates a tire. The results agree with the tests and show that the kind of adhesive bas no influence on tire resistance as the char layer that forms in the glulam surface is a good insulator that limits the depth of the wood darnaged by temperature and thus, its loss of mechanical resistance
Sattouf, Chakib. "Caractérisation en dynamique rapide du comportement de matériaux utilisés en aéronautique." Toulouse, INPT, 2003. http://www.theses.fr/2003INPT011H.
Rizk, Georgio. "Durabilité des matériaux composites sandwichs en conditions extrêmes : tenue au feu et évolution des propriétés mécaniques." Thesis, Nantes, 2018. http://www.theses.fr/2018NANT4098/document.
Composite materials play an increasingly important role in our society in many fields (aeronautics, naval, civil engineering), because of their advantages in terms of lightness, unalterability and rigidity. It is therefore essential to understand and evaluate their properties in the long term (durability). However, the use of this type of material requires special precautions, particularly with regard to fire resistance. Indeed, sandwich composites are highly flammable and poorly heat resistant. The aim of this thesis project is to study in a combined way the thermomechanical durability (fire resistance) of polymer matrix composite sandwich materials by means of experimental measurements with a calorimeter cone. It is also a question of modeling the variations of mechanical properties induced as a function of the temperature and the combustion time, using a multiphysical model based on a finite element approach (Abaqus). The processes of thermal degradation of these materials are presented as a function of temperature and time, as well as behavior laws and of thermal and mechanical properties predictions. An improved thermal numerical model is programmed and validated in relation to experimental fire resistance measurements (oven, calorimeter cone). Confrontations between experimental measurements and numerical model, performed under several fire resistance scenario configurations, are carried out in order to understand and predict the behavior and thermomechanical properties of composite sandwich materials
Dépinoy, Florent. "Élaboration d'élastomères thermoplastiques ignifugés : étude des relations structure / propriétés." Thesis, Lille 1, 2008. http://www.theses.fr/2008LIL10038.
The aim of this study is to fireproof thermoplastic elastomers based on polyolefins (TPa). The studied TPa are blends of polypropylene (PP), ethylene propylene copolymers (EPDM) and hydrogenated styrene butadiene rubber (HSBR). The elastic properties of TPa based on PP/HSBR blends are closed to hyperelasticity when the level of HSBR is high (between 75 and 100% in mass of the polymers) and these properties are higher than those observed for PP/EPDM blends. These properties can be explained in particular by the higher miscibility of HSBR with PP, when compared with EPDM. The incorporation of additive based on ammonium polyphosphate (APP) to fireproof the TPa blends leads to intumescent formulations. Concerning the elastic behaviour, this incorporation mostly modifies the elongation at break of the TPa blends. Depending on the configuration of the sample during the test (horizontal or vertical test), the obtained fire properties are different. This difference is linked to the viscosity of the formulation in fire conditions: if the sample is in horizontal configuration during the test, the viscosity is less important than when the sample is vertical. When the sam pie is horizontal, HSBR-based intumescent formulations have a better fire behaviour than EPDM-based ones. These differences are explained by the fact that the intumescent structure is more stable in the case of PP and HSBR than in the case of EPDM: wh en the intumescent structure is formed, EPDM does not react with the additive, whereas PP and HSBR do react. This is the consequence of the higher viscosity of EPDM during the intumescence phenomena, compared to PP and HSBR
Belva, Frédéric. "Synthèse et caractérisation de matériaux hybrides Polyuréthane/Polydimenthylsiloxane : compréhension de leur comportement au feu." Lille 1, 2005. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2005/50376-2005-144.pdf.
Books on the topic "Aéronautique – Essais de comportement au feu":
John, Sherman. Fire resistant fluids. Edited by American Society for Testing and Materials. Conshohocken, PA: ASTM International, 2014.
Apte, Vivek B. Flammability Testing of Materials Used in Construction, Transport and Mining. Elsevier Science & Technology, 2020.
Apte, Vivek B. Flammability Testing of Materials Used in Construction, Transport and Mining. Elsevier Science & Technology, 2020.
Apte, Vivek B. Flammability Testing of Materials Used in Construction, Transport and Mining. Elsevier Science & Technology, 2006.
Apte, Vivek B. Flammability testing of materials used in construction, transport and mining. CRC, 2006.
Babrauskas, Vytenis, and William Parker. Fire Behavior of Upholstered Furniture and Mattresses (Safety, Health & Hygiene). Noyes Publications, 2000.