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Dissertations / Theses on the topic 'Carbon fibre reinforced polymer composites'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Diao, Hele. "Carbon fibre reinforced polymer composites with enhanced ductility." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/44273.

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Carbon fibre reinforced polymers (CFRPs) have high strength and stiffness, low density, long fatigue life in the fibre direction and good corrosion resistance. Nowadays, CFRPs are been used in aeronautics, wind turbine blades, sports goods and civil industry. However, one fundamental limitation of CFRPs is their brittleness (low ductility): CFRPs fail catastrophically at a relatively low strain (1.5% to 1.8%) under the tension with little warning or residual load-carrying capacity. To overcome this weakness, there is considerable interest to enhance the ductility of CFRPs exhibiting increased

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2

Garekani, Amir Hossein Afrasiabi. "Numerical modeling of orthogonal cutting of carbon fibre reinforced polymer composites." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58401.

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The focus of this study is on the orthogonal cutting of fibre reinforced composites. A thorough review of the literature is presented in both experimental and numerical work that has thus far been conducted. It is found that in orthogonal cutting of composites, cutting forces, chip formation mechanism and the extent of damage below the cutting plane are highly dependent on the fibre orientation. With fibre orientation increasing from 0° to 90°, cutting forces tend to increase and chips become more dust-like. Two modeling approaches are most commonly adopted for the prediction of force and chi

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3

Salama, Adel. "Laser machining of carbon fibre reinforced polymer composite." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/laser-machining-of-carbon-fibre-reinforced-polymer-composite(7310ed95-b876-480b-a8b4-2033b4309cb6).html.

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Carbon fibre reinforced polymer (CFRP) composites have found a wide range of applications in the aerospace, marine, sports and automotive industries owing to their lightweight and acceptable mechanical properties compared to the commonly used metallic materials. The currently dominating method of machining CFRP is by mechanical means that has found many problems including extensive tool wear, fibre pull-out and delamination. Lasers as non-contact tools have been widely applied for cutting and drilling materials. However, machining of CFRP composites using lasers can be challenging due to inhom

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4

Breña, Sergio F. "Strengthening reinforced concrete bridges using carbon fiber reinforced polymer composites /." Full text (PDF) from UMI/Dissertation Abstracts International, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p3004223.

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5

Scudder, Lawrence Philip. "Characteristics and testing of carbon fibre reinforced polymer composites using laser generated ultrasound." Thesis, University of Warwick, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283488.

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6

Bin, Ahmad Sobri Sharizal. "Mechanical and laser drilling of thick carbon fibre reinforced polymer composites (CFRP)." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/mechanical-and-laser-drilling-of-thick-carbon-fibre-reinforced-polymer-composites-cfrp(e5c5182e-a8b2-49c9-bceb-bd7ba9342eb1).html.

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Carbon fibre reinforced polymer, or CFRP composite materials, play an increasingly important role in modern manufacturing. They are widely used in aerospace, and their use is currently spreading to other industries where high strength-to-weight ratios are required. However, machining of composites is still a challenging task and often hampered by poor quality. Despite the extensive research that was conducted on the machining of composite materials over the last few years, mechanical drilling still suffers from delamination, fibre pull-out and poor surface finish, whereas laser cutting produce

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7

Negarestani, Reza. "Laser cutting of carbon fibre-reinforced polymer composite materials." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/laser-cutting-of-carbon-fibrereinforced-polymer-composite-materials(90c7dab8-2b05-4098-aee7-d90a66b9face).html.

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Carbon fibre-reinforced polymer (CFRP) composite materials are in increasingly high demand, particularly in aerospace and automotive industries for reduced fuel consumption. This is due to their superior structural characteristics (both in fatigue and static conditions) and light weight. Anisotropic and heterogeneous features of these materials, however, have posed serious challenges in machining of CFRPs. Hence new machining technologies need to be investigated. Laser is a non-contact (eliminating toolwear) thermal process. Therefore, the thermal properties of the material are of crucial impo

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8

Curnick, Paul. "An investigation on the machining of multidirectional glass and carbon fibre reinforced polymer composites." Thesis, University of Wales Trinity Saint David, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.683075.

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9

Prickett, Andrew C. "Intralaminar cracking of fibre reinforced composites : a fracture mechanics and ToF-SIMS study." Thesis, University of Surrey, 2001. http://epubs.surrey.ac.uk/798035/.

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10

Tann, David Bohua. "Retrofitting of mechanically degraded concrete structures using fibre reinforced polymer composites." Thesis, University of South Wales, 2001. https://pure.southwales.ac.uk/en/studentthesis/retrofitting-of-mechanically-degraded-concrete-structures-using-fibre-reinforced-polymer-composites(efce1110-34e1-457d-8ec5-3ef5da026018).html.

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This research involves the study of the short term loaded behaviour of mechanically degraded reinforced concrete (RC) flexural elements, which are strengthened with fibre reinforced polymer (FRP) composites. The two main objectives have been: (a) to conduct a series of realistic tests, the results of which would be used to establish the design criteria, and (b) to carry out analytical modelling and hence develop a set of suitable design equations. It is expected that this work will contribute towards the establishment of definitive design guidelines for the strengthening of reinforced concrete

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11

Bolimowski, Patryk Adam. "Microcapsule-based self-healing in carbon fibre reinforced polymer composites : towards design and application." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.705473.

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12

Lee, Tuan Kuan 1976. "Shear strength of reinforced concrete T-beams strengthened using carbon fibre reinforced polymer (CFRP) laminates." Monash University, Dept. of Civil Engineering, 2003. http://arrow.monash.edu.au/hdl/1959.1/6647.

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13

Chennakesavelu, Ganesh. "Orthogonal machining of uni-directional carbon fiber reinforced polymer composites." Thesis, Wichita State University, 2010. http://hdl.handle.net/10057/3473.

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This research basically deals with Orthogonal Machining of Unidirectional Carbon Fiber Reinforced Polymer (FRP) Composites as secondary operations like machining is a very important process in composites manufacturing. Even though composites are manufactured to near net shape, machining operations becomes obvious to attain dimensional accuracy and surface finish for further assembly operations. The machining of FRP’s is different and more complicated to that of metals because of their anisotropic and inhomogeneous nature, along with the chip formation mode for its brittle behavior. Fibers are

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14

Gudimani, Gurusiddeshwar. "Oblique machining of uni directional carbon fiber reinforced polymer composites." Thesis, Wichita State University, 2011. http://hdl.handle.net/10057/3956.

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Composite materials have a wide range of applications in aerospace and automotive industries due to the advantage of their tailorability when manufacturing. These materials are manufactured near net shape but post-production machining is required where it cannot be avoided like holes, cutouts and doors to achieve dimensional accuracies and for further assemblies. Oblique machining is one of the important processes as to achieve the above. The machining of composites is different from that of metals due to the anisotropic and inhomogeneity of the material. Because of this nature the machining p

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15

Rodriguez, Alejandro Jose. "Processing and characterization of carbon nanoparticle/fiber-reinforced polymer composites." Diss., Wichita State University, 2010. http://hdl.handle.net/10057/3467.

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Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) have an exceptional combination of properties that make them ideal materials for use as reinforcing particles in advanced composites. This investigation was aimed at obtaining fundamental understanding of the processing and properties of carbon nanoparticle/fiber-reinforced polymer composites ―defined as multiscalereinforced polymer composites (MRPCs)― manufactured through a practical and scalable process. Such process consists of two stages. The first stage involves the synthesis of multiscalereinforcement fabrics (MRFs) by electrophoretic

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16

Lee, James Khian-Heng. "Alternative Carbon Fiber Reinforced Polymer (CFRP) Composites for Cryogenic Applications." MSSTATE, 2004. http://sun.library.msstate.edu/ETD-db/theses/available/etd-04082004-154654/.

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A cheaper access to space is needed in current times and new technologies need to be developed to reduce the cost of space access to increase productivity. This thesis presents a study on carbon fiber reinforced polymer (CFRP) composites which is an enabling technology for cost reduction in space vehicles. A literature review of the behavior of CFRP composite has been conducted and it was found that the currently used IM7/977 carbon fiber reinforced epoxy composites do not microcrack at a lower number of thermal cycles. Nano-composites and Thermoplastic matrix composites have been found as two

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17

Alisawi, Mazin Yaseen. "Effect of indenter size on damage of carbon fibre-reinforced polymer composites under impact loads." Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/40675.

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The applications of composite materials have been increasing significantly in recent decades. The major effect limiting the use composite materials is the lack of understanding of their response and their structural integrity under dynamic loads. Delamination under dynamic load is particularly recognised as the most critical damage process in laminated composites. The objective of this thesis is to experimentally and numerically investigate the fundamental phenomena associated with delamination. This is important develop a further knowledge of the response and damage mechanisms of composite ma

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18

Yari, Boroujeni Ayoub. "Fatigue, Fracture and Impact of Hybrid Carbon Fiber Reinforced Polymer Composites." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/84223.

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The excellent in-plane strength and stiffness to-weight ratios, as well as the ease of manufacturing have made the carbon fiber reinforced polymer composites (CFRPs) suitable structural materials for variety of applications such as aerospace, automotive, civil, sporting goods, etc. Despite the outstanding performance of the CFRPs along their fibers direction (on-axis), they lack sufficient strength and performance in the out-of-plane and off-axis directions. Various chemical and mechanical methods were reported to enhance the CFRPs' out-of-plane performance. However, there are two major drawba

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19

Guerra, Dante Rene. "INFLUENCE OF NANOPARTICLES ON THE PHISICAL PROPERTIES OF FIBER REINFORCED POLYMER COMPOSITES." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1259091518.

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20

Shalaby, Ashraf Mounir Mahmoud. "Development of a new spun concrete pole reinforced with carbon fiber reinforced polymer bars." Birmingham, Ala. : University of Alabama at Birmingham, 2007. https://www.mhsl.uab.edu/dt/2009r/shalaby.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2007.<br>Title from PDF title page (viewed Feb. 5, 2010). Additional advisors: Ashraf Al Hamdan, Wilbur A. Hitchcock, Jason T. Kirby, Talat Salama. Includes bibliographical references (p. 148-153).

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21

Nguyen, Phi Long. "Experimental and numerical study on thermo-mechanical behaviour of carbon fibre reinforced polymer and structures reinforced with CFRP." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1130/document.

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Le polymère renforcé de fibres de carbone (CFRP) est l'une des solutions courantes pour réparer/renforcer/ fortifier/ rétrofiter les structures en génie civil en raison de ses avantages dans les propriétésmécaniques, la durabilité et la maniabilité. Cependant, des problèmes d'incendie récents ont soulevédes inquiétudes quant à la performance au feu du CFRP et des structures renforcées par CFRP. Dansla littérature, il existe plusieurs études sur l'évolution de la performance mécanique de CFRP et desstructures renforcées par CFRP pendant ou après l'exposition à différents niveaux de température

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22

Bettelli, Mercedes Amelia. "Effect of Induction-Heat Post-Curing on Residual Stresses in Fast-Curing Carbon Fibre Reinforced Composites." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80527.

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Manufacturing induced shape distortions is a common problem for composite materials. Due to the non-isotropic nature of carbon fibre reinforced polymers (CFRP) unavoidable deformations occur during part production. During fabrication of polymer composites, the material obtains its final shape at elevated temperatures. The curing process involves a transition from the liquid state to the solid, glassy state, allowing bonding between fibres and matrix. As the material cools the mismatch in thermal expansion coefficients and cure shrinkage obtained during the matrix polymerization leads to residu

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23

Hart, Robert James. "Electrical resistance based damage modeling of multifunctional carbon fiber reinforced polymer matrix composites." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5493.

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In the current thesis, the 4-probe electrical resistance of carbon fiber-reinforced polymer (CFRP) composites is utilized as a metric for sensing low-velocity impact damage. A robust method has been developed for recovering the directionally dependent electrical resistivities using an experimental line-type 4-probe resistance method. Next, the concept of effective conducting thickness was uniquely applied in the development of a brand new point-type 4-probe method for applications with electrically anisotropic materials. An extensive experimental study was completed to characterize the 4-probe

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24

Angelidis, Nikolaos. "Damage sensing in CFRP composites using electrical potential techniques." Thesis, Cranfield University, 2004. http://dspace.lib.cranfield.ac.uk/handle/1826/127.

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This Thesis investigates the damage sensing capabilities of the electrical potential measurement technique in carbon fibre reinforced polymer composites. Impact damage was introduced in multidirectional laminates and its effect on potential distribution studied. It was found that delaminations and fibre breakages within the laminate can be detected and located by measuring potential changes on the external composite surface. The extent and size of potential changes were significantly affected by the position of the current electrodes in relation to the potential measurement probes. A numerical

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25

Cormier, Daniel. "Repair of Conductive Layer on Carbon Fibre Reinforced Polymer Composite with Cold Gas Dynamic Spray." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/33160.

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Carbon fibre reinforced composites are known for their high specific strength-to-weight ratio and are of great interest to the aerospace industry. Incorporating these materials into the fuselage, like in Boeing's 787 "Dreamliner", offers considerable weight reduction which increases flying efficiency, and reduces the cost of flying. In flight, aircraft are often subject to lightning strikes which, in the case of composites, can result in localized melting given the high resistive nature of the material. Aerospace carbon fibre composites often incorporate a metallic mesh or foil within the comp

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26

Assaf, Ihab Adeeb. "Shear strengthening of reinforced concrete beams using an external carbon fibre reinforced polymer (CFRP) composite of low elastic modulus." Thesis, University of Salford, 2007. http://usir.salford.ac.uk/26555/.

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Beam-column joints designed seismically are considered impractical due to the congestion of steel stirrups. Currently, CFRP is used for strengthening reinforced concrete structures that have reduced integrity due to corrosion of steel reinforcement or unintentional overloading. The aim of this thesis is to mitigate the congestion of steel stirrups in the beam-column joint regions using an externally bonded CFRP composite and to possibly propose initial 'new build' design rules. Experimental work was conducted on 24 reinforced concrete beams with different percentages of steel shear reinforceme

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27

Hill, Christopher Brandon. "Investigation of electrical and impact properties of carbon fiber reinforced polymer matrix composites with carbon nanotube buckypaper layers." Thesis, University of Iowa, 2012. https://ir.uiowa.edu/etd/2894.

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Carbon fiber reinforced composite materials have become commonplace in many industries including aerospace, automotive, and sporting goods. Previous research has determined a coupling relationship between the mechanical and electrical properties of these materials where the application of electrical current has been shown to improve their mechanical strengths. The next generations of these composites have started to be produced with the addition of nanocarbon buckypaper layers which provide even greater strength and electr

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28

Lee, Luke Soo-won. "Monitoring and service life estimation of reinforced concrete bridge decks rehabilitated with externally bonded carbon fiber reinforced polymer (CFRP) composites /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 2005. http://wwwlib.umi.com/cr/ucsd/fullcit?p3175279.

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29

Chan, Kathleen Joyce. "Investigation of Processing Conditions and Viscoelastic Properties on Frictional Sliding Behavior of Unidirectional Carbon Fiber Epoxy Prepreg." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/86444.

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The quality of continuous fiber reinforced polymer matrix composite parts and structures depends strongly on the friction during the composite forming process. The two major types of friction that cause deformations during this process are ply-ply friction and tool-ply friction. One of the challenges in the composite forming process is the occurrence of wrinkling and shape distortion of the fabric caused by the surface differences between the forming tool and surface of the laminate. Frictional measurements of composites can vary widely depending on processing parameters, measurement technique

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30

Abdi, Yussuf Yusuf, and Ibrahim Zand Jalal. "FRP:s användning inom brokonstruktioner." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259362.

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I dagsläget är de flesta broar i Sverige tillverkade med betong eller stål. Dessa broar är många gånger förknippade med stora kostnader som ofta beror på underhåll och reparation. FRP, som står för Fiber Reinforced Polymer, är ett relativt nytt material i bärande stommar men är ett väl etablerat material i förstärkningssammanhang. I Europa och i synnerhet Nederländerna finns det flertal broar byggda i FRP. Men på grund av brist på normer och regelverk att luta sig emot sker det sällan någon form av brokonstruktion med FRP i Sverige. Detta examensarbete syftar till att undersöka befintliga norm

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31

Cococcetta, Nicholas Michael. "Investigating Surface Finish, Burr Formation and Tool Wear During Sustainable Machining of 3D Printed Carbon Fiber Reinforced Polymer (CFRP) Composites." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1586533608277002.

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32

Beguinel, Johanna. "Interfacial adhesion in continuous fiber reinforced thermoplastic composites : from micro-scale to macro-scale." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI051.

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L’intérêt croissant de l’industrie pour les matériaux composites thermoplastiques est motivé par leurs propriétés de thermoformabilité, de recyclabilité ainsi que leurs capacités de cadences de production élevées. Le développement de matériaux pré-imprégnés thermoplastiques, apparus dès les années 1980, s’est imposé comme un moyen efficace de contourner les fortes viscosités des polymères utilisés en réduisant la distance d’écoulement des polymères à l’état « fondu ». Cette étude s’est plus particulièrement intéressée au développement de composites à base de tissus de verre et de carbone pré-i

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33

Qazi, Samiullah. "Comportement mécanique sous sollicitations alternées de voiles béton armé renforcés par matériaux composites." Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00961220.

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Les enquêtes récentes sur les séismes ont fait ressortir l'importance des murs en béton armé en tant que partie intégrante des structures. L'évolution des règlements prend en compte ces considérations, par contre le bâti existant doit subir des renforcements dans l'objectif de leur mise en conformité. Dans cette thèse une étude expérimentale faite sur douze murs (six élancés et six courts) renforcés par un collage externe en composite a été conduite. Les murs ont été conçus en étant sous-renforcés à la flexion et cisaillement. Quatre de ces six échantillons ont été renforcés par des bandes de

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34

VERDEAU, TRUFFIER CAROLINE. "Influence des conditions d'elaboration sur la zone interfaciale de materiaux composites hautes performances a matrice thermoplastique." Paris, ENMP, 1988. http://www.theses.fr/1988ENMP0117.

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Microstructure et proprietesmecaniques de composites unidirectionnelles polyetherethercetone/ fibres carbone, sulfure de polyphenylene/fibres de carbone et polyetherimide/fibre de carbone. Influence de temps rapide, refroidissement lent etc. Essais mecaniques. Cohesion interne. Mise en evidence d'une phase "transcristalline". Modelisation du comportement viscolastique

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35

Nguyen, Thanh Hai. "Contribution à l'étude du comportement thermomécanique à très haute température des matériaux composites pour la réparation et/ou le renforcement des structures de Génie Civil." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10244/document.

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Dans le domaine du renforcement et/ou de la réparation des structures en béton armé par des matériaux composites à l'aide de la méthode du collage extérieur au moyen d'un adhésif époxy, une des préoccupations de la communauté scientifique est l'intégrité structurelle de ce système dans le cas d'incendie dans lequel la haute température est une caractéristique essentielle et peut atteindre jusqu'à 1200°C. Ce travail de recherche est axé sur le comportement thermomécanique à très haute température des matériaux composites [un composite à base de polymère carbone/ époxy (Carbon Fiber Reinforced P

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36

Elrikh, Axelle. "Revêtement anti-usure déposé par projection plasma sur matériaux composites fibres de carbones/matrice époxy pour applications aéronautiques." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0131/document.

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Les matériaux composites à matrice polymères renforcés aux fibres de carbone (PRFC) sont de plus en plus utilisés dans les avions, en raison de leur faible densité et de leurs propriétés mécaniques comparables aux alliages généralement utilisés. Ils sont cependant sensibles aux impacts répétés des particules solides et liquides intervenant au cours du cycle de vol d’un avion, et nécessitent d’être protégés. Cette thèse est inscrite dans ce contexte de protection des PRFC, plus particulièrement ceux à matrice époxy, par le biais de dépôts anti-usure réalisés par projection plasma sous air. De t

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永正, 邵., and Yongzheng Shao. "Study on the effects of matrix properties on the mechanical properties of carbon fiber reinforced plastic composites." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12902982/?lang=0, 2015. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12902982/?lang=0.

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It was found that a significant improvement of mechanical properties of CFRPs can be achieved by the adjustment of the matrix properties such as toughness and CF/matrix adhesion via the chemical modification, as well as the physical modification by a small amount of cheap and environment-friendly nano fibers. Based on investigation of fracture mechanisms at macro/micro scale, the effects of matrix properties and nano fiber on the mechanical properties of CFRP have been discussed. Subsequently, the relationship has been characterized by a numerical model to show how to modulate the parameters o

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38

Huang, Jia. "Rapid determination of fatigue behaviour for carbon fiber reinforced polymer laminates based on thermodynamic phenomena observed by IR thermography." Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30033.

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Afin de réduire le poids des structures composites et les coûts de fabrication et d'exploitation, le comportement en fatigue des stratifiés carbone fait l'objet d'une grande attention. Les objectifs de cette thèse sont de développer des méthodologies pour évaluer rapidement le comportement en fatigue des stratifiés carbone à partir de l'analyse des données thermodynamiques mesurées par une caméra infrarouge et d'examiner la corrélation entre la dissipation d'énergie et les dommages générés par la fatigue. Trois nouvelles méthodes numériques basées sur l'analyse statistique dans le traitement d

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39

Guetta, Brigitte. "Vieillissement hygrothermique de composites a matrice psp : etude cinetique, mecanique et spectroscopique." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0057.

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40

Andreou, Eftychia. "Performance evaluation of RC flexural elements strengthened by advanced composites." Thesis, University of South Wales, 2002. https://pure.southwales.ac.uk/en/studentthesis/performance-evaluation-of-rc-flexural-elements-strengthened-by-advanced-composites(f441fa99-6428-46c2-8053-8e362546044c).html.

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The flexural performance of composite systems made of reinforced concrete, Fibre Reinforced Polymers (FRPs) and adhesives was studied during the current research. The experimental investigation was principally concentrated on the potential use of Kevlar® 49 (aramid fibre) for RC beam strengthening. The main aims of research have been; (a) to investigate the relative merits of using Aramids in comparison to other FRPs, (b) strength optimisation of systems to prevent excessive losses of ductility, (c) to examine the failure mode and crack patterns, together with salient strength factors at ultim

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41

LIU, ZENG-GANG. "Comportement et modelisation des materiaux composites carbone/epoxyde en cisaillement a grande vitesse." Nantes, 1987. http://www.theses.fr/1987NANT2011.

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42

Welter, John T. "Oblique angle pulse-echo ultrasound characterization of barely visible impact damage in polymer matrix composites." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1575295152635788.

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43

Caggegi, Carmelo. "Experimental analysis of the efficiency of carbon fiber anchors applied over CFRP to firebrick bonded joints." Thesis, Paris Est, 2013. http://www.theses.fr/2013PEST1025/document.

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Dans les dernières années, le renforcement des bâtiments en maçonnerie a connu une usure massive des bandes CFRP. Ces matériaux composites, attachés sur les éléments à renforcer, sont exposés à une fracture prématurée pour délaminage (...). Une façon pour accroître la résistance maximale du système renforcé par CFRP est d'améliorer la cohésion entre support et composite en utilisant des ancrages mécaniques. Ces derniers sont réalisés en utilisant les mêmes typologies de fibres de renforcement et en les insérant dans le support comme des «clous». Les recherches scientifiques sur l'usure de cett

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44

Ponsot, Bernard. "Influence de la matrice sur le comportement a long terme de composites carbone-epoxyde." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0058.

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Etat de degradation en fonction du temps d'un materiau soumis a des sollicitations thermomecaniques sur des plaques unidirectionnelles et des tubes (esais, traction, fluage, eclatement, flexion). Utilisation d'emission acoustique pour suivre l'evolution de la structure. Cinetique d'endommagement

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45

Brunel, Jean-Evrard. "Influence de l'endommagement sur la rupture de plaques composites en présence de surcontraintes." Paris 13, 1989. http://www.theses.fr/1989PA132008.

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On cherche à définir un critère de rupture d'éprouvettes trouées en matériau composite stratifiés croisé. Des essais de traction statique uniaxiale, menés sur 3 matériaux (T300-5208, T300-6376, T400-6376) agencés sous différentes séquences d'empilement conduisent à déterminer l'influence de la nature du renfort ou de la matrice sur les mécanismes d'endommagement.

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46

Raud, Christophe. "Fissuration des composites carbone à matrice thermostable en traction isotherme et cyclage thermique." Cachan, Ecole normale supérieure, 1993. http://www.theses.fr/1993DENS0013.

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Ce travail vise a mieux comprendre les phénomènes qui régissent la microfissuration des stratifies carbone/matrice organique thermostable. Deux matériaux représentatifs des classes de température 200-250c (t800/5250 et t800/pmr-15), élaborés suivant plusieurs conditions de moulage, ont été étudiés. Il s'agit de déterminer l'influence des paramètres de fabrication sur la sensibilité a la microfissuration d'un drapage modelé 0#2,90#2#s dans des conditions de chargement quasi-statiques (traction uniaxiale) ou en sollicitation thermique alternée : en isotherme, des essais en traction statique inte

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47

Renault, Michel. "Tolerance a l'endommagement de composites carbone-resine et stratifies t300-914." Paris, ENMP, 1988. http://www.theses.fr/1988ENMP0109.

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Etude experimentale (essais de fatigue, essais de traction, de compression) sur des eprouvettes entaillees ou non, trouees ou non de stratifies resine epoxyde/carbone. Analyse mathematique avec des calculs par elements finis

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48

Pandolfi, Carlo. "Experimental characterization of carbon-fiber-reinforced polymer laminates." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/9777/.

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The goal of this thesis is to make static tensile test on four Carbon Fiber Reinforced Polymer laminates, in such a way as to obtain the ultimate tensile strength of these laminates; in particular, the laminates analyzed were produced by Hand Lay-up technology. Testing these laminates we have a reference point on which to compare other laminates and in particular CFRP laminate produced by RTM technology.

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49

Cantwell, W. J. "Impact damage in carbon fibre composites." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/7834.

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50

Pillain, Baptiste. "Définition des indicateurs clés de performance et évaluation multicritère de filières durables de recyclage des polymères renforcés de fibres de carbone issus de l’industrie aéronautique." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0630/document.

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La consommation globale de plastique renforcé de fibres de carbone (PRFC) est en constante augmentation, ce qui induit la nécessité de créer un secteur de recyclage capable de traiter l’ensemble des fibres de carbone actuellement consommées et qui représente la quantité de déchets à traiter en devenir. Cette thèse porte sur le développement et l'application d’une méthodologie d’évaluation multicritère du développement durable pour la création d’une filière de recyclage des plastiques renforcés de fibres de carbone (PRFC) issus du secteur aéronautique, mais aussi des autres secteurs consommateu

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