Academic literature on the topic 'MATRIX COMPOSITS'

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Journal articles on the topic "MATRIX COMPOSITS"

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Inoue, Masahiro, and Katsuaki Suganuma. "Mechanical Properties of Ceramic Fiber Reinforce Aluminide Matrix Composits." Materia Japan 37, no. 4 (1998): 230–33. http://dx.doi.org/10.2320/materia.37.230.

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Cornel, Bucur, and Bucur Ana Maria. "Survey Of The State Of The Art Composites And Sandwich Structures." ACTA Universitatis Cibiniensis 67, no. 1 (September 1, 2015): 174–78. http://dx.doi.org/10.1515/aucts-2015-0085.

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Abstract The objective of the work is to present some researches regarding composits. The aim is motivated by the new materials such as composites and structural concepts, sandwich construction that have resulted in lighter structural designs with superior performance. There are presented and discussed the types of matrix materials, sandwich construction, failure modes in sandwich structures and design considerations. It is not possible to cover every aspect of this vast subject. The purpose here is to impart the basic knowledge so that the people involved in the structural repairs will have better understanding of the processes.
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Kala, Shiva Kumar, and Chennakesava Reddy Alavala. "Enhancement of Mechanical and Wear Behavior of ABS/Teflon Composites." Trends in Sciences 19, no. 9 (April 8, 2022): 3670. http://dx.doi.org/10.48048/tis.2022.3670.

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In the present investigations, Most of the engineering applications of metallic materials are replaced by polymeric based composite materials. Because of the low cost and accessible handling of polymer composite materials such as Acrylonitrile butadiene styrene (ABS) matrix materials are used to make the composites with additions of filler enhance the properties of the matrix materials. In the present study, ABS matrix material is used to make the composite materials by adding the Teflon materials. Investigations are carried out to find the enhancement of the composites' mechanical properties. Optimizing the process parameters is done to identify the composite's most optimum used to get composite with better mechanical properties. SEM analysis and wear Debris are investigated to study the microscopic surface nature and behavior of the composites.
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BESSHO, T., T. OGASAWARA, T. AOKI, T. ISHIKAWA, and Y. OCHI. "CMC-05: Transient Creep Behavior of a Plain Woven SiC Fiber/SiC Matrix Composite(CMC-I: CERAMICS AND CERAMECS MATRIX COMPOSITES)." Proceedings of the JSME Materials and Processing Conference (M&P) 2005 (2005): 15. http://dx.doi.org/10.1299/jsmeintmp.2005.15_1.

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Liang, Yun Xing, Li Chen, Hai Wen Liu, and Hua Wu Liu. "The Development of a High Elastic 3D Prefabricated Composite." Advanced Materials Research 332-334 (September 2011): 1773–76. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1773.

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With the development of modern technology, fiberglass composite materials are widely applied. The advantages of fiberglass reinforced composite materials are high strength and light weight. In order to produce a prefabricated fiberglass composite, a machine chart was drafted for weaving the 3D fiberglass fabric with five layers. The obtained five-layer 3D fabrics were composited with polyurethane matrix. Afterwards, the performance of the prefabricated composites was tested and the optimal ratio of fiberglass to matrix was determined by statistical analysis.
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Markovičová, Lenka, and Viera Zatkalíková. "The Effect of Filler Content on the Mechanical Properties of Polymer Composite." Applied Mechanics and Materials 858 (November 2016): 190–95. http://dx.doi.org/10.4028/www.scientific.net/amm.858.190.

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A composite material is a macroscopic combination of two or more distinct materials, having a recognizable interface between them. Modern composite materials are usually optimized to achieve a particular balance of properties for a given range of applications. Composites are commonly classified at two distinct levels. The first level of classification is usually made with respect to the matrix constituent. The major composite classes include organic – matrix composites (OMC's), metal – matrix composites (MMC's), and ceramic – matrix composites (CMC's). The OMC's is generally assumed to include two classes of composites: polymer – matrix composites (PMC's) and carbon – matrix composites [1]. The composite material used in the work belongs to the PMC's and the composite is formed by the polymer matrix - high density polyethylene. As filler was used hard-magnetic strontium ferrite. Composite samples were prepared with different filler content (0%, 60%, 70%, 80%). Testing of polymer composites included: tensile test, elongation at break, impact test, hardness test.
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Markovičová, Lenka, and Viera Zatkalíková. "Composites With Rubber Matrix And Ferrimagnetic Filling." System Safety: Human - Technical Facility - Environment 1, no. 1 (March 1, 2019): 776–81. http://dx.doi.org/10.2478/czoto-2019-0099.

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AbstractA composite material is a macroscopic combination of two or more distinct materials, having a recognizable interface between them. Modern composite materials are usually optimized to achieve a particular balance of properties for a given range of applications. Composites are commonly classified at two distinct levels. The first level of classification is usually made with respect to the matrix constituent. The major composite classes include organic – matrix composites (OMC's), metal – matrix composites (MMC's), and ceramic – matrix composites (CMC's). The OMC's is generally assumed to include two classes of composites: polymer – matrix composites (PMC's) and carbon – matrix composites (Peters, 1998). The composite material used in the work belongs to the PMC's and the composite is formed by the polymer matrix – rubber (sidewall mixture). As filler was used hard-magnetic strontium ferrite. Composite samples were prepared with different filler content (20%, 30%, 40%, 50%). Testing of polymer composites included: tensile test, elongation at break, hardness test and study of morphology.
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ISHII, K., M. KOYAMA, H. HATTA, and I. SHIOTA. "CMC-09: Hybrid Bonding between C/C Composites Using Si Infiltration(CMC-II: CERAMICS AND CERAMIC MATRIX COMPOSITE)." Proceedings of the JSME Materials and Processing Conference (M&P) 2005 (2005): 37. http://dx.doi.org/10.1299/jsmeintmp.2005.37_4.

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Seikh, Ziyauddin, Mukandar Sekh, Sandip Kunar, Golam Kibria, Rafiqul Haque, and Shamim Haidar. "Rice Husk Ash Reinforced Aluminium Metal Matrix Composites: A Review." Materials Science Forum 1070 (October 13, 2022): 55–70. http://dx.doi.org/10.4028/p-u8s016.

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Metal matrix composite materials are a novel material generation capable of handling the implementation of advanced technology's growing needs. Aluminium-based metal matrix composites are widely used in automobiles and aerospace, as well as other industries, including defence and marine systems, due to their relatively low processing costs as compared to other matrices such as magnesium, copper, titanium, and zinc. Ceramic particles were shown to improve mechanical properties like hardness and tensile strength. The product's compactness and price, however, were both boosted. Agricultural waste materials are widely available today in significant amounts, and researchers have focused on using wastes as reinforcing fillers in composites to counteract pollution. Rice husk ash added to an aluminium alloy matrix increases the composite's mechanical properties while also increasing its wear resistance. According to scanning electron micrographs of the composite, the ash from rice husks is evenly distributed all over the aluminium matrix. Wear can vary from micro-cutting to oxidation at high temperatures in an aluminium alloy. Strain fields are produced and composite material wear resistance is improved due to the difference in coefficients of thermal expansion between the matrix and reinforcing materials. This study focuses on the production process, properties, and performance of an aluminium alloy composite incorporating rice husk ash, which has high hardness as well as wear resistance.
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Budnik, Oleg, Anatoliy Budnik, Valentin Sviderskiy, Kristina Berladir, and Pavel Rudenko. "Structural Conformation of Polytetrafluoroethylene Composite Matrix." Chemistry & Chemical Technology 10, no. 2 (June 15, 2016): 241–46. http://dx.doi.org/10.23939/chcht10.02.241.

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Enhancement of physical and mechanical properties and structuring activity of polytetrafluoroethylene as matrix of composites by means of mechanical activation is shown. Operating modes of mechanical activation equipment are defined, in which the service properties of PTFE are maximized. The effect of mechanical activation technology on restructuring and change of morphology and supramolecular structure of PTFE is detected for the first time.
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Dissertations / Theses on the topic "MATRIX COMPOSITS"

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Ward, William F. "A theoretical investigation into the inelastic behavior of metal-matrix composites." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/17244.

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Hsu, Sheng-yuan. "On the prediction of compressive strength and propagation stress of aligned fiber-matrix composites /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Benethuilière, Thibaut. "Phénomènes physico-chimiques aux interfaces fibre/matrice dans des composites SMC structuraux : Du mouillage à l'adhésion." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI151.

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Gabrion, Xavier. "Contributions à la caractérisation d'un matériau composite thermoplastique thermostable : Application à des structures cylindriques sous sollicitations multiaxiales." Thesis, Besançon, 2014. http://www.theses.fr/2014BESA2012.

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Ce travail de thèse, en partenariat avec l’entreprise ALSTOM, s’inscrit dans une logique de remplacement de pièces industrielles en alliage métallique par des pièces composites pour l’allègement des structures. L’objectif est de contribuer à l’écriture de règles de dimensionnement permettant au partenaire industriel de certifier des pièces structurales annulaires réalisées en composite à matrice thermoplastique thermostable (TPTS) renforcée par des fibres de carbone pour des applications embarquées sur machine tournante. Il s’agit plus exactement de déterminer la durée de vieen fatigue de ces pièces, en particulier en présence d’endommagement, et lorsque celles -ci sont soumises aux chargements inertiels et thermiques de service.Au cours de ce travail de thèse, une méthodologie a été développée afin de répondre à cette demande. La stratégie a consisté à reproduire,à l’échelle d’éprouvettes de laboratoire, l’état de contrainte multi-axial et l’endommagement auxquels la structure industrielle est soumise, et ce en développant et optimisant un essai de traction sur des éprouvettes annulaires entaillées. Les essais multi axiaux plus classiques mettant en œuvre des sollicitations par pression interne présentent effectivement de nombreux problèmes techniques et sécuritaires lorsqu’ils doivent être mis en œuvre à chaud.Une fois la configuration d’essai sur anneau optimisé par simulation numérique, des essais ont été réalisés afin de confirmer l’apparition des endommagements escomptés à l’aide de techniques de contrôle non-destructif. Les essais cycliques réalisés dans cette configuration ont montré une excellente résistance du matériau en fatigue, en particulier pour un ratio de chargement R de 0.5, proche des conditions de service. Les résultats ont également soulignés le fort potentiel restant de ces structures, même après un grand nombre de cycles de chargement
The objective of this thesis work, in partnership with ALSTOM Company, is to contribute to the writing of design rules in order to qualify and certify annular structures made of thermostable thermoplastic matrix composite reinforced by carbon fibre. These structures are used in rotating machines for embedded applications.This work proposes an innovative methodology to achieve this goal. It consists in reproducing, at the scale of a laboratory specimen, the multiaxial stress and damage states to which the industrial structure is subjected in-service byoptimizing a tensile test on annular notched specimen. More conventional multiaxial tests, based on internal pressureand tensile loading are particularly unsafe and difficult to be performedwhen implemented at elevated temperature.After the optimisation of the ring configuration by numerical simulation, experimental tests were performed to validatethe appearance of the expected damage under loading. Damage was characterized using non-destructive techniques suchas acoustic emission and infrared thermography. The cyclic tests achieved using this configuration showed high fatiguestrength of this material, in particular for a ratio R of 0.5 (equivalent to thein-service ratio). The results also highlight thegreat remaining strength and rigidity of these structures, even after a large number of cycles
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Ellerby, Donald Thomas. "Processing and mechanical properties of metal-ceramic composites with controlled microstructure formed by reactive metal penetration /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/10583.

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Breunig, Thomas M. "Nondestructive evaluation of damage in SiC/Al metal matrix composite using x-ray tomographic microscopy." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/19999.

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Wright, Richard J. "Bolt bearing creep behavior of highly loaded polymer matrix composites at elevated temperatures." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/17362.

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Elouaer, Abdelmonem. "Contribution à la compréhension et à la modélisation du comportement mécanique de matériaux composites à renfort en fibres végétales." Thesis, Reims, 2011. http://www.theses.fr/2011REIMS003/document.

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L’industrie des matériaux composites ne cesse d’évoluer et de croître en mettant en place de nouveaux matériaux et de nouvelles technologies. En substitution des matériaux d’origine fossile que les matériaux d’origine naturelles (et surtout végétales) commencent à voir le jour. C’est dans ce contexte que notre travail de recherche est proposé. Il s’intéresse à la caractérisation du comportement mécanique d’un composite à matrice Polypropylène, renforcé avec des fibres de Chanvre et du bois de Chanvre (Chènevotte). Les différents moyens et techniques de caractérisation, utilisés par la présente étude, ont montré que ces nouveaux matériaux sont dotés de propriétés, en particulier mécaniques, de haut niveau, qui viennent rivaliser avec celles des autres composites classiques à base de fibres de verre et de carbone.Les essais expérimentaux en statique et de fatigue, ont révélé beaucoup de détails en comparaison avec d’autres matériaux composites. Ces informations ont permis de créer une sorte de base de données qui pourra servir de référence pour d’autres composites de la même famille à base de fibres végétales. Ainsi, des mécanismes d’endommagement ont été mis en évidence grâce aux essais mécaniques (traction monotone, charge-décharge, …) associés à des observations microscopiques (Microscope Electronique à Balayage), et à des outils de détection du dommage basés sur l’émission acoustique. Par le biais de cette technique, nous avons pu apprécier la qualité et l’importance de l’interface fibre/matrice qui est un paramètre fondamental pour la présente étude et pour la détermination de la loi de comportement du composite.La modélisation micromécanique a été intégrée dans ce travail de thèse, grâce au modèle de Mori-Tanaka. Le comportement des matériaux à l’endommagement n’a pas été pris en considération ; seule l’élasticité a été étudiée. A l’aide de ce modèle, nous avons pu remonter aux propriétés intrinsèques des constituants (le module d’élasticité longitudinale des renforts: Chanvre et Chènevotte)
The composites industry continues to evolve and grow by developing new materials and new technologies. Replacing fossil materials by materials with natural origin (especially vegetable) seems to be one of the most promising. In this context our research is proposed. It is interested to characterize the mechanical behavior of a polypropylene matrix composite reinforced with fibers of Hemp and Wood of Hemp (Chenevotte). The various means and characterization techniques used in this study showed that these new materials have interesting mechanical properties, coming rival those of other conventional composites based on carbon and glass fibers.The experimental static and fatigue tests have revealed many details in comparison with other composite materials. The information help creates a database that can serve as reference for other composites of the same family and vegetable fibers. Mechanisms of damage have been highlighted through mechanical tests (tensile monotonous charge-discharge …) associated with microscopic observations (Scanning Electron Microscope), and tools for damage detection based on emission acoustics. Thanks to this technique, we could improve the quality of the interface fiber / matrix which is a basic parameter for this study and for determining the behavior of composite.Micromechanical modeling has been integrated in this thesis, through the Mori-Tanaka model. The behavior of materials during damage has not been taken into account: only the elasticity has been studied. Using this model, we were able to trace the intrinsic properties of the constituents (the longitudinal modulus of elasticity of the reinforcements: Hemp and Chenevotte)
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Wang, Xufeng Materials Science &amp Engineering Faculty of Science UNSW. "Application of single-part adhesives as healing agent in self-healing composites." Awarded by:University of New South Wales. Materials Science and Engineering, 2007. http://handle.unsw.edu.au/1959.4/32233.

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The aim of this study was to develop a new single-part healing system for self-healing composites. The self-healing approach to composite repair has been developed in the last two decades and means that a damaged area can be repaired by material already housed within the structure. The background and development of self-healing has been reviewed. The two main self-healing mechanisms are discussed. To date only two part self healing systems have been examined. These require diffusion of the separate constituents to a single location in order to effect cure and restore strength. Single part adhesives do not have this disadvantage and are therefore very attractive. Several candidate single-part adhesive or resin systems were considered and discussed according to the critical requirements of a self-healing system. A series of experiments was undertaken to evaluate the possibility of candidate adhesive systems being effective for self-healing by focusing on the determination of storage stability and bonding efficiency. The results of storage stability testing showed that the stability of cyanoacrylate and polyurethane adhesives was poor. However silane and polystyrene cements showed good storage stability. Very low bonding efficiency was achieved with polystyrene cement but a 22% strength recovery was obtained with the silane 3-[tris(trimethylsiloxy)silyl]-propylamine. Suggestions for further research into single-part healing systems are also given.
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Sacks, Serena. "Effects of thermal aging on the mechanical behavior of K3B matrix material and its relationship to composite behavior." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/18865.

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Books on the topic "MATRIX COMPOSITS"

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(Firm), Knovel, ed. Composite materials handbook: Metal matrix composites. [Washington, D.C.?]: U.S. Department of Defense, 2002.

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National Institute for Aviation Research (U.S.), ed. Composite materials handbook: Polymer matrix composites, materials properties. Warrendale, Pa.]: SAE International on behalf of CMH-17, a division of Wichita State University, 2018.

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Micromechanics of composites: Composite properties of fibre and matrix constituents. Munich: Hanser, 1996.

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1959-, Spragg Christopher J., Drzal Lawrence T, ASTM Committee D-30 on High Modulus Fibers and Their Composites., and Symposium on Fiber, Matrix, and Interface Properties (1994 : Phoenix, Ariz.), eds. Fiber, matrix, and interface properties. West Conshohocken, Penn: ASTM, 1996.

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Ceramic matrix composites. 2nd ed. Boston: Kluwer Academic, 2003.

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Ceramic matrix composites. London: Chapman & Hall, 1993.

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E, Grady Joseph, and United States. National Aeronautics and Space Administration., eds. Ceramic matrix and resin matrix composites: A comparison. [Washington, DC]: National Aeronautics and Space Administration, 1987.

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Chawla, K. K. Ceramic Matrix Composites. Boston, MA: Springer US, 1993.

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R, Warren, ed. Ceramic-matrix composites. London: Blackie, 1992.

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Davim, J. Paulo, ed. Ceramic Matrix Composites. Berlin, Boston: De Gruyter, 2016. http://dx.doi.org/10.1515/9783110353006.

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Book chapters on the topic "MATRIX COMPOSITS"

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Chawla, Krishan K. "Matrix Materials." In Composite Materials, 73–103. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-0-387-74365-3_3.

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Chawla, Krishan K. "Matrix Materials." In Composite Materials, 72–100. New York, NY: Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4757-2966-5_3.

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Chawla, Krishan Kumar. "Matrix Materials." In Composite Materials, 58–78. New York, NY: Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4757-3912-1_3.

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Chawla, Krishan K. "Matrix Materials." In Composite Materials, 75–105. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-28983-6_3.

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Retuerta del Rey, Guillermo, Andrea Fernández Gorgojo, Juan Pedro Fernández Blázquez, and Enrique Chacón Tanarro. "Calculation of Williams-Landel Ferry Shift Factors via Probe Tack Testing for Uncured Prepreg Materials." In Proceedings of the XV Ibero-American Congress of Mechanical Engineering, 43–49. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-38563-6_7.

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AbstractKnowledge of the viscoelastic properties of the resin present in uncured pre-impregnated composites is essential for the development and optimization of current automated manufacturing processes for composite parts (AFP, ATL, FPP…). Time-temperature superposition applied to the tack force between the prepreg and the tool allows to optimize production times without influencing the viscoelastic behavior of the material by simply varying the temperature. The application of this time-temperature superposition principle requires the calculation of two parameters that depend on the matrix of the composite and that are usually calculated by rheological tests with pure resin samples. In this work, a novel method to obtain these parameters directly from the pre-impregnated composite material using adhesion tests is presented.
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Keller, Kristin A., George Jefferson, and Ronald J. Kerans. "Oxide-Oxide Composites." In Ceramic Matrix Composites, 236–72. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118832998.ch8.

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Contreras Cuevas, Antonio, Egberto Bedolla Becerril, Melchor Salazar Martínez, and José Lemus Ruiz. "Joining of Composites." In Metal Matrix Composites, 187–226. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91854-9_5.

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Contreras Cuevas, Antonio, Egberto Bedolla Becerril, Melchor Salazar Martínez, and José Lemus Ruiz. "Corrosion of Composites." In Metal Matrix Composites, 227–71. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91854-9_6.

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Contreras Cuevas, Antonio, Egberto Bedolla Becerril, Melchor Salazar Martínez, and José Lemus Ruiz. "Wear of Composites." In Metal Matrix Composites, 273–97. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91854-9_7.

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Perov, B. V., and I. P. Khoroshilova. "Hybrid composite materials." In Polymer Matrix Composites, 269–304. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0515-6_6.

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Conference papers on the topic "MATRIX COMPOSITS"

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Hamada, Hiroyuki, Asami Nakai, Kazuya Eto, and Kenichi Sugimoto. "Mechanical Properties of Matrix Hybrid Thick-Composites." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62305.

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For the purpose of more safety boats, the large thickness of outer plates is required to increase flexural stiffness, strength and impact properties. Some problems in mechanical properties are generated by increasing in thickness because the effect of interlaminar shearing of Thick-composites on whole mechanical properties is greater than that of thin-composites. We have investigated the matrix hybrid composite with two kinds of unsaturated polyester, one was hard type resin with low toughness and the other was flexible type resin with low modulus and high toughness. In this study, matrix hybrid composite was focused and applied to Thick-composites. First, the flexural properties were investigated and the micro fracture progress was precisely observed with in-situ observation using replica method. Then, impact properties of the Thick-composites were examined and the availability of matrix hybrid composite was investigated. It was concluded that the matrix hybrid composite achieved high performance in both static and impact load.
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Shue, Bruce, Alfonso Moreira, and George Flowers. "Review of Recent Developments in Composite Material for Aerospace Applications." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87847.

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Advanced materials are a key element in the development of modern aerospace vehicles and composites are one of the most promising types of such materials. They tend to be significantly lighter than their metal counterparts, while possessing impressive strength and performance characteristics. This paper describes recent work and developments in three major types of composite materials — polymer matrix composite (PMC), metal matrix composite (MMC), and ceramic matrix composite (CMC). Recent work in nanocomposites, which is particularly applicable to polymer matrix and metal matrix composites is also presented and discussed. In addition, some recent work in composite material damping is discussed and a modeling strategy for amplitude dependent damping is developing based upon heuristic modeling considerations and experimental testing results.
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Fard, Masoud Yekani, Brian Raji, and Aditi Chattopadhyay. "Fracture Mechanics Based Total Fatigue Life Behavior for Stitch-Bonded Polymer Matrix Composites." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64045.

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Stitch-bonded biaxial polymer matrix composite is a compromise between unidirectional composite and woven composite materials. In this paper, fatigue delamination behavior of stitch-bonded biaxial polymer matrix composites was investigated. The delamination growth rate in three domains of subcritical, linear, and unstable growth rate were studied. The effects of increased fracture resistance due to fiber bridging, multiple cracks, separation, and matrix cracking were considered in fatigue behavior of the composite. The fatigue onset life test was conducted to determine the threshold energy release rate. The total life delamination growth rate of stitch-bonded polymer matrix composites was characterized and presented.
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Li, Longbiao. "Micromechanical Modeling of Time-Dependent Crack Opening Behavior in SiC/SiC Composites." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-80583.

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Abstract Ceramic-matrix composites (CMCs) possess high specific strength and modulus at elevated temperature and have already been applied in hot-section components in commercial or military gas turbine engines. Due to low fracture strain in the brittle SiC ceramic, matrix microcracking occurs below the proportional limit stress (PLS). At elevated temperature, the opening of matrix microcracking affects the mechanical properties of CMCs when the oxygen or oxidative gas ingresses the composite through these cracks. To ensure the reliability, safety, and airworthiness level of CMCs components, it is necessary to understand the crack opening behavior of CMCs at elevated temperature. In this paper, a micromechanical approach is developed to predict the time-dependent crack opening behavior in SiC/SiC composite. Micro stress field in the different damage regions are obtained and the cracking opening displacement (COD) are calculated. Experimental CODs in SiC/SiC composite for different matrix crack lengths are predicted. Effects of composite material properties, stress level, and testing temperature on the time-dependent crack opening behavior in SiC/SiC composite are analyzed. Relationships between the cracking opening, composite’s constituent properties, stress level, and testing temperature are established. The analysis results can help the engineering designer better understanding the crack opening behavior in CMCs.
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Mishra, Ashish, and Sivasambu Mahesh. "Reliability of Ti/SiC Metal Matrix Composites." In ASME 2017 Gas Turbine India Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gtindia2017-4859.

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Components such as bladed rings, and bladed disks fabiricated out of titanium matrix composites were extensively explored in the two decades since about 1990 as light weight replacements for conventional superalloy blades and disks in the intermediate hot stages of gas turbines. One of the challenges, which has hindered their adoption is the relative unreliability of the composite components; nominally identical Ti composite specimen display a much larger variability in strength than their superalloy counterparts. In the present work, we have quantified the reliability of Ti matrix composites by developing a detailed micromechanical-statistical model of their failure. The micromechanical model resolves fibres, matrix, and the interface, and accounts for such failure modes as fibre breakage, matrix cracking, matrix plasticity, interfacial sliding, and debonding. It also accounts for mechanical interaction between these various failure modes. The mechanical model’s predictions are validated against synchotron X-ray measurements reported in the literature, both after loading, and unloading. Using the detailed micromechanical model, Ti matrix composite was simulated following a Monte Carlo framework. These simulations yield the empirical strength distribution of the Ti matrix composite, and insights into the dominant failure mode. The latter allows the construction of a stochastic model of composite failure. The stochastic model can be used to determine safe working loads as a function of composite size for any desired reliability level.
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Rahman, Mosfequr, F. N. U. Aktaruzzaman, Saheem Absar, Aniruddha Mitra, and Awlad Hossain. "Finite Element Analysis of Polyurethane Based Composite Shafts Under Different Boundary Conditions." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37753.

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Depending on the type of matrix materials, composites can be broadly divided into three different major classifications: Organic-matrix composites (OMC), metal-matrix composites (MMC), and ceramic-matrix composites (CMC). OMC can be further sub-classified into polymer-matrix composites (PMC) and carbon-matrix composites or carbon-carbon composites. In this paper the main objective is to focus on polyurethane based PMC composites. Polyurethane is one of the widely used polymer matrix materials. It has diversified applications, easily available and cheap. In this computational study a composite shaft with a core made of matrix material completely wrapped around by a woven fiber cloth with a very strong bonding between core and fibers is considered. Three different types of woven fibers: fiber glass, Kevlar 49, and carbon fibers, are considered. A woven fabric is the interlocking or weaving of two unidirectional fibers. This configuration is often used to produce curve surfaces because of the ease with which it could be placed on and conform to curved surfaces. Authors had fabricated these three composites in their in-house laboratory. They had also experimentally measured the mechanical properties of these composites using 3-point bending test which already been published. In this current study finite element analyses has been performed for the modeling of the static response of these three different polyurethane based composite shafts as fiber glass reinforced polyurethane epoxy, carbon fiber reinforced polyurethane epoxy, and Kevlar fibers reinforced polyurethane epoxy for three different boundary conditions. These three boundary conditions are simply supported, cantilever, both end fixed types with bending loads applied at the middle for simply supported case and distributed load along the length of the shaft for the last two types of boundary conditions. A three dimensional model of the composite beam has been implemented in this study using SolidWorks. A finite element commercial software ANSYS is used to investigate the stress response and deformation behavior of the model geometry for these three polyurethane based composite shafts for these three boundary conditions. A twenty node three dimensional element has been implemented for the finite element formulation of the modeled geometry such that it is applicable for the analysis of a layered composite structure, while providing support for linear, large rotation, and large strain nonlinear loading conditions. Convergence has also been ensured for various mash configurations in this work.
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Idrisi, Amir Hussain, and Abdel-Hamid Ismail Mourad. "Fabrication and Wear Analysis of Aluminium Matrix Composite Reinforced by SiC Micro and Nano Particles." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65459.

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Metal matrix composites (MMCs) constitute an important class of weight-efficient structural material which empowering every field of engineering applications. Aluminium based metal matrix composites contains potential for high specific strength and advanced structural applications, as well as good elevated temperature resistance along with light weight application. However, need for improved tribological performance has led to the fabrication of newer variants of the composite. In the present work, aluminium based metal matrix composite (MMCs) developed through stir casting route by reinforcing different weight percentage of SiC micro (5% and 10%) and nano (1% and 2%) particles. In this research, 5083 aluminium alloy is used as matrix phase due its broad range of industrial applications. Wear behaviour of the developed aluminium matrix composite (AMC) was investigated under different conditions of applied load, operation time and speed. The analysis carried out at room temperature for three different loads (10N, 20N, and 30N) with varying four different operation times (30 mins, 60 mins, 90 mins, and 120 mins). The speed was kept constant at 1450 rpm during all experiments. The results of all considered composites are investigated and the composite with 2% SiC nano reinforcement is identified as a superior among all other composition for tribological applications point of view. Also the developed aluminium matrix composites have potential applications in many industries such as pressure vessels, pipe fittings, boat hulls, gears and pistons.
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Ruggles-Wrenn, M. B., N. J. Boucher, and C. P. Przybyla. "Fatigue of Advanced SiC/SiC Ceramic Matrix Composites at Elevated Temperature in Air and in Steam." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75051.

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High-temperature mechanical properties and tension-tension fatigue of three SiC/SiC ceramic composites are discussed. Effects of steam on high-temperature fatigue are evaluated. The three composites consist of a SiC matrix reinforced with SiC (Hi-Nicalon™) fibers. Composite 1 was processed by chemical vapor infiltration (CVI) of SiC into fiber preforms coated with BN. Composite 2 had an oxidation inhibited matrix consisting of alternating SiC and B4C layers and was processed by CVI. Fiber preforms were coated with pyrolytic carbon with B4C overlay. Composite 3 had a melt-infiltrated (MI) matrix consolidated by combining CVI-SiC with SiC particulate slurry and molten Si infiltration. Fiber preforms were coated with BN. Tension-tension fatigue was investigated at 1200°C in air and in steam. Steam significantly degraded the fatigue performance of composites 1 and 3, but had little influence on the fatigue performance of composite 2. Composite microstructure, as well as damage and failure mechanisms were investigated.
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Cramer, K. Elliott, William P. Winfree, Edward R. Generazio, Ramakrishna Bhatt, Dennis S. Fox, and Andrew J. Eckel. "Thermal Diffusivity Imaging of Ceramic Composites." In ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1993. http://dx.doi.org/10.1115/93-gt-043.

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Strong, tough, high temperature ceramic matrix composites are currently being developed for application in advanced heat engines. One of the most promising of these new materials is a SiC fiber-reinforced silicon nitride ceramic matrix composite (SiCf/Si3N4). The interfacial shear strength in such composites is dependant on the integrity of the fiber’s carbon coating at the fiber-matrix interface. The integrity of the carbon rich interface can be significantly reduced if the carbon is oxidized. Since the thermal diffusivity of the fiber is greater than that of the matrix material, the removal of carbon increases the contact resistance at the interface reducing the thermal diffusivity of the composite. Therefore thermal diffusivity images can be used to characterize the progression of carbon depletion and degradation of the composite. A new thermal imaging technique has been developed to provide rapid large area measurements of the thermal diffusivity perpendicular to the fiber direction in these composites. Results of diffusivity measurements will be presented for a series of SiCf/Si3N4 (reaction bonded silicon nitride) composite samples heat-treated under various conditions. Additionally, the ability of this technique to characterize damage in both ceramic and other high temperature composites will be shown.
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Kim, D., and M. Ramulu. "Study on the Drilling of Titanium/Graphite Hybrid Composites." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81132.

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Titanium/graphite hybrid composites (TiGr) are a potentially enabling technology which satisfies the low structural weight fraction and long operational lifetime required for the High Speed Civil Transport. TiGr composites are made of thermoplastic polymer matrix composite (PMC) plies with titanium foils as the outer plies. The two materials are assembled by bonding the polymer matrix composite plies and titanium foils to form a hybrid composite laminate. Both experimental and analytical work has been performed to characterize major hole quality parameters and cutting mechanisms encountered in drilling of TiGr composites. The effects of consolidation processing, such as induction heating press and autoclave processe, on drilling characteristics of TiGr composites were examined. The hole quality parameters and hole exit damage was investigated and discussed.
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Reports on the topic "MATRIX COMPOSITS"

1

Chattopadhyay, Aditi. Damage Precursor Detection in Polymer Matrix Composites Using Novel Smart Composite Particles. Fort Belvoir, VA: Defense Technical Information Center, September 2016. http://dx.doi.org/10.21236/ad1018261.

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2

Barnes, Eftihia, Jennifer Jefcoat, Erik Alberts, Hannah Peel, L. Mimum, J, Buchanan, Xin Guan, et al. Synthesis and characterization of biological nanomaterial/poly(vinylidene fluoride) composites. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42132.

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The properties of composite materials are strongly influenced by both the physical and chemical properties of their individual constituents, as well as the interactions between them. For nanocomposites, the incorporation of nano-sized dopants inside a host material matrix can lead to significant improvements in mechanical strength, toughness, thermal or electrical conductivity, etc. In this work, the effect of cellulose nanofibrils on the structure and mechanical properties of cellulose nanofibril poly(vinylidene fluoride) (PVDF) composite films was investigated. Cellulose is one of the most abundant organic polymers with superior mechanical properties and readily functionalized surfaces. Under the current processing conditions, cellulose nanofibrils, as-received and 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) oxidized, alter the crystallinity and mechanical properties of the composite films while not inducing a crystalline phase transformation on the 𝛾 phase PVDF composites. Composite films obtained from hydrated cellulose nanofibrils remain in a majority 𝛾 phase, but also exhibit a small, yet detectable fraction of 𝛼 and ß PVDF phases.
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Plucknett, K. P., T. N. Tiegs, K. B. Alexander, P. F. Becher, J. H. Schneibel, S. B. Waters, and P. A. Menchhofer. Intermetallic bonded ceramic matrix composites. Office of Scientific and Technical Information (OSTI), July 1995. http://dx.doi.org/10.2172/102180.

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4

Johnson, William L., William A. Goddard, and III. Bulk Metallic Glass Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, August 1998. http://dx.doi.org/10.21236/ada357938.

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5

Newton, Crystal H. Implementation of the Military Handbook 17 for Polymer Matrix Composites and Metal Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, April 1994. http://dx.doi.org/10.21236/ada278795.

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6

Newton, Crystal H. Implementation of the Military Handbook 17 for Polymer Matrix Composites and Metal Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, October 1994. http://dx.doi.org/10.21236/ada285629.

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7

Newton, Crystal H. Implementation of the Military Handbook 17 for Polymer Matrix Composites and Metal Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, October 1994. http://dx.doi.org/10.21236/ada285772.

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8

Besmann, T. M., D. P. Stinton, E. R. Kupp, S. Shanmugham, and P. K. Liaw. Fiber-matrix interfaces in ceramic composites. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/425298.

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9

Reynolds, G. H., and L. Yang. Plasma Joining of Metal Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, November 1986. http://dx.doi.org/10.21236/ada176690.

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Reynolds, G. H., and L. Yang. Plasma Joining of Metal Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, December 1986. http://dx.doi.org/10.21236/ada178731.

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