Gotowa bibliografia na temat „Propergols composites”
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Rozprawy doktorskie na temat "Propergols composites"
HEUILLET, PATRICK. "Caracterisation de l'endommagement des propergols solides composites". Compiègne, 1992. http://www.theses.fr/1992COMP0460.
Pełny tekst źródłaHeuillet, Patrick. "Caractérisation de l'endommagement des propergols solides composites". Compiègne, 1992. http://www.theses.fr/1992COMPD460.
Pełny tekst źródłaMarcilloux, Jérôme. "Contribution à l'étude de charges organiques pour matériaux composites à matrice élastomère : modification de surface de particules de polystyrène réticulées et encapsulation d'hydrocarbures polycycliques". Mulhouse, 1995. http://www.theses.fr/1995MULH0365.
Pełny tekst źródłaBoulé, Philippe. "Contribution de la fractographie quantitative à l'étude de la rupture dynamique de propergols et d'explosifs composites". Metz, 1988. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1988/Boule.Philippe.SMZ881.pdf.
Pełny tekst źródłaTests of Quick traction (20m/s) are achieved to determine the mechanical properties of cristal energetic materials. A fractographic analysis of the aspects and of the sections of rupture is undertaken in order to characterize the mechanisms of rupture. Experimental means such as the Vicom analyser of numerical images, the macrophotographic bench, the scanning electron microscope, the video camera have been used. Thanks to a statistical analysis of measure results of the constraints (tests of dynamical traction) and of microstructural parameters (fractal analysis), we study the influence of those microstructural parameters on the behaviour to the rupture of propergols and compound explosives
Boulé, Philippe Pluvinage Guy. "Contribution de la fractographie quantitative à l'étude de la rupture dynamique de propergols et d'explosifs composites". [S.l.] : [s.n.], 1988. ftp://ftp.scd.univ-metz.fr/pub/Theses/1988/Boule.Philippe.SMZ881.pdf.
Pełny tekst źródłaBoulé, Philippe. "Contribution de la fractographie quantitative à l'étude de la rupture dynamique de propergols et d'explosifs composites". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37612080j.
Pełny tekst źródłaNevière, Robert. "De l'application des critères énergétiques globaux de la mécanique de la rupture à l'étude des explosifs et propergols solides composites". Vandoeuvre-les-Nancy, INPL, 1989. http://www.theses.fr/1989NAN10440.
Pełny tekst źródłaToulemonde, Paul-Aymé. "Etude de la relation microstructure/propriétés mécaniques jusqu’à rupture des propergols composites : Caractérisation expérimentale et modélisation micromécanique par éléments finis". Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0038/document.
Pełny tekst źródłaThis work aims at understanding the relationship between solid propellants particles volume fraction, particles size distribution, binder mechanical properties and binder/particles bonding with the mechanical behavior up to failure of these materials. Finite elements analyses on 2D microstructures are performed in order to qualitatively characterize the microstructure evolution throughout uniaxial tensile loading at small strain rate. These simulations account for the binder/particles debonding with a cohesive zone model and implement an original failure criterion. Simulation and experimental results are consistent. Besides, a quantitative comparison between simulations on 3D microstructures and experimental data is drawn in order to validate the above qualitative results. It is performed on a model composite and compares both the mechanical behavior and the volume variations. At last, the propellant failure during a peeling test of the liner/propellant structure is studied experimentally
Giasson, Luc. "Développement des méthodes de calcul et de mesure de la courbe J-R d'un composite polymère particulaire propergol / : par Luc Giasson". Thèse, [Chicoutimi : Rimouski : Université du Québec à Chicoutimi] Université du Québec à Rimouski, 2003. http://theses.uqac.ca.
Pełny tekst źródłaBibliogr.: f. 107-112. Document électronique également accessible en format PDF. CaQCU
Bernigaud, Pierre. "Modélisation de la combustion des matériaux énergétiques nouvelle génération". Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAE017.
Pełny tekst źródłaUsed in civil and military rocket engines, composite propellants are characterized by a heterogeneous structure at the microscopic level. They consist mainly of oxidizer particles embedded in a polymer matrix known as the binder. The binder maintains the structural integrity of the propellant, and produces via its pyrolysis gases whose combustion is responsible for most of the heat release within the flame. The combustion products of the oxdizer particles oxidize the fuel generated by the binder.Ammonium perchlorate (AP) is a widely used oxidizing agent in composite propellants, mainly in association with a polymer binder such as hydroxytelechelic polybutadiene (HTPB). Next-generation propellants could include nitramines in their composition, such as hexogen (RDX), as a partial replacement for AP for certain specific purposes. In particular, reducing the amount of AP contained in the propellant can limit the formation of a visible trail at the engine exhaust, reducing the vehicle's signature.In this thesis, we propose to revisit the studies carried out on the combustion of conventional AP/HTPB propellants, and to characterize the effect of RDX inclusion in their composition.To this end, the first part of the thesis is dedicated to the development of combustion models for the ingredients under consideration: AP, homogenized AP/HTPB blend, and RDX.A chemical kinetics mechanism is assembled, capable of representing the chemical processes characteristic of the combustion of all these energetic materials. For each ingredient, a condensed-phase decomposition model is also formulated, to be associated with the kinetic mechanism. One-dimensional simulations are then carried out using a coupled flame/solid approach, in order to validate the whole on available experimental data.Due to their heterogeneous structure, the study of composite propellant combustion requires the use of multidimensional numerical methods. A second part of the thesis is therefore dedicated to the development and validation of a 2D calculation code, enabling the simulation of the combustion of an oxidizer particle surrounded by a layer of binder, in an axisymmetric configuration.In a final section, the combustion models and the computational code are used in conjunction to study the effect of RDX inclusion in a conventional AP/HTPB propellant. For the first time, the flame structure produced by such AP/HTPB/RDX propellant is obtained and characterized. The effect of pressure and RDX particle size on propellant regression is investigated, demonstrating the existence of different combustion regimes. Recommendations are made for optimizing the performance of this type of composition