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Dissertations / Theses on the topic 'Carbon fiber polymer s'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Vodička, Vít. "Interlaminární lomová houževnatost vláknových kompozitních materiálů s polymerní matricí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231461.

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Cílem této diplomové práce je lépe porozumět konceptu únavového poškození damage tolerance zmapováním všech možných vlivů na lomovou houževnatost vláknového kompozitu s polymerní matricí. Toho je dosaženo provedením zkoušek za různých podmínek (např. změna parametrů měření, mód zatížení, pořadí vrstev a materiál) a monitorováním odlišností v šíření trhliny. Na základě dat získaných během těchto testů je určena lomová houževnatost. Potenciální rozdíly jsou zkonzultovány a porovnány s ostatními vzorky.

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2

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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3

Wang, R., Z. Cao, L. Hao, et al. "Healing Carbon Fiber/Polymer Composites by Resistive Heating." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35277.

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Interface is the key region which determines, to a great extent, the set of properties of all heterogeneous systems, including composite materials. We reported interface healing of carbon fiber reinforced thermoplastic composite material via resistive heating. The carbon fiber, T700 carbon fiber, with a resistivity of 1.66·10-3 Ω·cm was used as the heating element while the matrix is polyarylether sulfone with cardo. Micro-droplet experiment was used to study the interface strength before and after heating to determine the healing efficiency. The measurement shows (experimental results sh

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4

Paneru, Nav Raj. "Carbon Fiber Reinforced Polymer (CFRP) Tendons in Bridges." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1544741841522648.

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5

Spencer, Ryan J. "Porosity Evaluation in Carbon Fiber Polymer Laminates using Acoustography." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/theses/2148.

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In this research, through-transmission ultrasonic (TTU) Acoustography was applied to measure and quantify porosity levels in carbon fiber reinforced polymer (CFRP) composite laminates. This study employed several CFRP specimens with wide ranges of porosity prepared by altering the curing pressure during the manufacturing process. The Acoustography method, operating at 5 MHz, was able to show contrast in ultrasonic images obtained for composite laminates with varied porosity levels. Porosity levels in composite laminates were quantified using destructive methods: acid digestion and microscop

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6

LUPONE, FEDERICO. "Additive manufacturing of carbon fiber reinforced thermoplastic polymer composites." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2966347.

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7

Kim, SangHun Aboutaha Riyad S. "Ductility of carbon fiber-reinforced polymer (CFRP) strengthened reinforced concrete." Related Electronic Resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2003. http://wwwlib.umi.com/cr/syr/main.

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8

O'Neal, Justin Earl. "Thermal protection of high temperature polymer-material-carbon fiber composites." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3189.

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Two evaporative-cooling materials were studied which are (i) salt hydrates and (ii) polyacrylic acid for the purpose showing proof of concept of being able to put evaporative-cooling materials into a composite with the Air Force polyimide AFR-PEPAN. The salt hydrates were observed to absorb water and then evaporate water, but due to having a collapsible lattice, made them incapable of reabsorbing water. Polyacrylic acid was mixed into an epoxy sheet at polacrylic acid weight percentages of 5, 10, 12.5. For each weight percentage there was a hydrated epoxy specimen and a dry epoxy specimen. All

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9

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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10

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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11

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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12

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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13

FILHO, JULIO JERONIMO HOLTZ SILVA. "CARBON FIBER REINFORCED POLYMER TORSION STRENGTHENING OF REINFORCED CONCRETE BEAMS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=10658@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Este estudo teórico-experimental analisa o comportamento até a ruptura de vigas de concreto armado reforçadas externamente à torção com compósitos de fibras de carbono (CFC). No programa experimental, sete vigas de concreto armado, com seção transversal de 20 cm x 40 cm e 420 cm de comprimento, com mesma armadura de aço longitudinal e transversal e concreto com mesma resistência à compressão, foram ensaiadas até a ruptura. As vigas testadas foram divididas em três séries, sendo uma viga de referência sem reforço, três viga

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14

Alsulami, Nawaf. "Finite Element Analysis of Carbon Fiber Reinforced Polymer Emergency Shelters." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1469580112.

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15

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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16

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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17

Brinkman, Ryan J. "Carbon Fiber Reinforced Polymer Repairs of Impact-Damaged Prestressed I-Girders." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353951833.

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18

Deng, Jiangang. "Durability of carbon fiber reinforced polymer (CFRP) repair/strengthening concrete beams." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1663060011&sid=2&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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19

Michael, Antonis Petrou. "Using carbon fiber reinforced polymer grids as confinement reinforcement for concrete." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0015670.

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20

Oommen, Dony Cherian. "Carbon fiber reinforced latex modified concrete for bridge deck overlays." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4760.

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Thesis (M.S.)--West Virginia University, 2006.<br>Title from document title page. Document formatted into pages; contains x, 103 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 84-87).

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21

Purba, Burt K. "Reinforcement of circular concrete columns with carbon fiber-reinforced polymer (CFRP) jackets." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0010/MQ31634.pdf.

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22

Lewis, Rachel Taylor. "Isolation and transmissibility of shipboard equipment with carbon fiber reinforced polymer mount." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74495.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 47).<br>The isolation and transmissibility of shipboard equipment is important to the function of a ship. The transmission of vibration from an engine to its surroundings can be devastating to sensitive equipment and disrupt normal operations. Isolator pads can be used to dampen transmissions from equipment to the ship and vice versa. In this thesis isolator pads of three different materials were considered: carbon fibe

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23

Toufigh, Vahid. "Testing and Evaluation of Confined Polymer Concrete Pile with Carbon Fiber Sleeve." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/293492.

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The goal of this research is to investigate the behavior of polymer concrete confined with a carbon fiber sleeve used as a pile foundation. To evaluate the behavior of a confined polymer concrete pile in this research, four steps was considered. The first step of this investigation considered the mix design of polymer concrete, polymer concrete is a new material which is a combination of epoxy resin and aggregate. Instead of using a traditional mix of cement and water to make concrete, epoxy resin is used. Three dissimilar varieties of aggregate are mixed with different ratios in order to rea

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24

Lin, Zhan. "Platinum and Platinum Alloy-Carbon Nanofiber Composites for Use as Electrodes in Direct Methanol Fuel Cells." NCSU, 2010. http://www.lib.ncsu.edu/theses/available/etd-03312010-171722/.

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In response to the energy needs of modern society and emerging ecological concerns, the pursuit of novel, low-cost, and environmentally friendly energy conversion and storage systems has raised significant interest. Among various energy conversion and storage systems, fuel cells have become a primary research focus since they convert chemical energy directly into electrical energy with high efficiency and low pollutant emissions. For example, direct methanol fuel cells (DMFCs), which supply the electrical energy by converting methanol to energy, are an ideal fuel cell system for applications i

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25

Sanità, Lorenzo. "Progetto di struttura 6U per Cubesat con elementi in Carbon Fiber Reinforced Polymer." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14662/.

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Progetto di strutture Cubesat 6U in alluminio e in CFRP. Sono stati prodotti i modelli CAD delle rispettive strutture e sono state effettuate analisi FEM per le verifiche strutturali in ambiente spaziale.

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26

Schnerch, David. "Strengthening of Steel Structures with High Modulus Carbon Fiber Reinforced Polymer (CFRP) Materials." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-06152005-090112/.

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Transportation departments and the telecommunications industry are currently demanding cost-effective rehabilitation and/or strengthening techniques for steel structures, including bridges and monopole towers. Rehabilitation is often required due to cross-section losses resulting from corrosion damage and strengthening may be required due to changes in the use of a structure. Current strengthening techniques, have several disadvantages including their cost, need to match the surface configuration of the existing structure, poor fatigue performance and the need for ongoing maintenance due to co

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27

Elnabelsya, Gamal. "Use of Carbon Fiber Reinforced Polymer Sheets as Transverse Reinforcement in Bridge Columns." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24298.

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Performance of bridges during previous earthquakes has demonstrated that many structural failures could be attributed to seismic deficiencies in bridge columns. Lack of transverse reinforcement and inadequate splicing of longitudinal reinforcement in potential plastic hinge regions of columns constitute primary reasons for their poor performance. A number of column retrofit techniques have been developed and tested in the past. These techniques include steel jacketing, reinforced concrete jacketing and use of transverse prestressing (RetroBelt) for concrete confinement, shear strengthening and

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28

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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29

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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30

Flynn, Dara S. "Mechanical Behavior Analysis of a Carbon-Carbon Composite for Use in a Polymer Electrolyte Fuel Cell." Digital WPI, 2004. https://digitalcommons.wpi.edu/etd-theses/172.

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While there is a substantial amount of information regarding the electrochemical behavior of fuel cells and there components little to no information is available regarding the mechanical properties of fuel cell materials in stack setups. This set of experiments was set up to test mechanical properties of gas diffusion layer and bipolar plate materials in a one cell setup. Samples were clamped to specified pressures and deformation properties were observed and measured. Measurements were taken of impingements of the gas diffusion layers into the gas flow channels. A limit for compression o

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31

Ozcan, Okan. "Improving Ductility And Shear Capacity Of Reinforced Concrete Columns With Carbon Fiber Reinforced Polymer." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611292/index.pdf.

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The performance of reinforced concrete (RC) columns during recent earthquakes has clearly demonstrated the possible failures associated with inadequate confining reinforcement. The confinement reinforcement requirements of older codes were less stringent than present standards. Many studies were conducted by applying different retrofitting techniques for RC columns that have inadequate confinement reinforcement. A new retrofitting technique by means of Carbon Fiber Reinforced Polymer (CFRP) was developed and tested in many countries in the last decade. This technique is performed by CFRP wrapp

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32

Chartosias, Marios. "Argon-oxygen atmospheric pressure plasma treatment on carbon fiber reinforced polymer for improved bonding." Thesis, California State University, Long Beach, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=1606056.

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<p> Acceptance of Carbon Fiber Reinforced Polymer (CFRP) structures requires a robust surface preparation method with improved process controls capable of ensuring high bond quality. Surface preparation in a production clean room environment prior to applying adhesive for bonding would minimize risk of contamination and reduce cost. Plasma treatment is a robust surface preparation process capable of being applied in a production clean room environment with process parameters that are easily controlled and documented. Repeatable and consistent processing is enabled through the development of a

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33

Vieira, Mylene de Melo. "Experimental study of reinforced concrete beams strengthened in bending with carbon fiber reinforced polymer." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11994.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>The reinforced concrete structures, when properly designed and performed, have prolonged its life. However, the lack of proper maintenance, acting loads greater than the design ones, pathological manifestations due to aggressive environment and accidents can impair the performance of the structure requiring the need for repair or structural strengthening. The technique of structural strengthening with application of carbon fiber reinforced polymer (CFRP), bonded externally to the reinforced concrete has advantages such as fast execu

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34

Sherry, Samuel Thomas. "Carbon Fiber Reinforced Polymer Retrofits to Increase the Flexural Capacity of Deteriorated Steel Members." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/104986.

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The load-carrying capacity of aging bridge members may at times be found insufficient due to deterioration and a historical trend towards increased truck axle loads beyond their design capacity. Structurally deficient bridges are problematic for bridge owners and users because they restrict traffic usage and require bridges to be posted (operate at less than their ideal capacity). Structural deficiency is the primary motivation for bridge owners to retrofit bridges to meet a specified operating demand. It may be required to replace or retrofit a portion or all of a deficient bridge. The repla

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35

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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36

Zhang, Xiefei. "Studies on Single Wall Carbon Nanotube and Polymer Composite Films and Fibers." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/7610.

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Single wall carbon nanotubes (SWNT) have been extensively studied over the last decade due to their excellent comprehensive properties for a variety of applications. This study is focused on the applications of SWNTs as reinforcement for polymer matrices. Due to van der Waal interactions, SWNTs form bundles of about 30 nm diameters. In order to take full advantage of the SWNT mechanical properties, SWNT must exfoliate or at least disperse in small diameter bundle size. Optical microscopy and SEM only give qualitative information of dispersion. Quantitative characterization through TEM or AFM c

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37

Yang, Xiong. "Use of Fiber Reinforced Polymer Composite Cable for Post-tensioning Application." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2259.

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Corrosion of steel tendons is a major problem for post-tensioned concrete, especially because corrosion of the steel strands is often hard to detect inside grouted ducts. Non-metallic tendons can serve as an alternative material to steel for post-tensioning applications. Carbon fiber reinforced polymer (CFRP), given its higher strength and elastic modulus, as well as excellent durability and fatigue strength, is the most practical option for post-tensioning applications. The primary objective of this research project was to assess the feasibility of the use of innovative carbon fiber reinforce

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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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Erdogan, Hakan. "Improvement Of Punching Strength Of Flat Plates By Using Carbon Fiber Reinforced Polymer (cfrp) Dowels." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612728/index.pdf.

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Due to their practical application, flat-plates have been commonly used slab type in constructions in recent years. According to the investigations that were performed since the beginning of the 20th century, the vicinity of the slab-column connection is found to be susceptible to punching failure that causes serious unrepairable damage leading to the collapse of the structures. The objective of this study is to enhance the punching shear strength of slab-column connections in existing deficient flat plate structures. For this purpose, an economical and easy to install strengthening method was

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Olka, Michael. "FLEXURAL MECHANICAL DURABILITY OF CONCRETE BEAMS STRENGTHENED BY EXTERNALLY BONDED CARBON FIBER REINFORCED POLYMER SHEETS." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3120.

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About 77,600 bridges throughout the United States in the Federal Highway Association (FHWA) bridge database are listed as structurally deficient. This has created a need to either replace or strengthen bridges quickly and efficiently. Due to high costs for total replacement of deficient bridges, strengthening of existing bridges is a more economical alternative. A technique that has been developing over the past two decades is the strengthening of bridges using carbon fiber reinforced polymer (CFRP) sheets. The CFRP sheets are attached to the bottom of the bridge girders using structural adhes

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Mahboob, Amir. "Study of the structural behavior of hybrid elements of carbon fiber reinforced polymer and concrete." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/673230.

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Creating sustainability and public infrastructure is a fairly recent subject the engineering community has been debating. Introducing new building materials or introducing new structural designs is a strategy for constructing buildings that have long-term reliability and low maintenance requirements. Fiber-reinforced polymers (FRP) are one of the innovative approaches in the field of civil engineering that offer promising results in this regard. In order to maximize the usage of FRP forms, researchers suggested the development of hybrid structural structures by mixing composite materials with

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42

Kim, Kun San. "Adhesion of graphite fibers to polycarbonate matrix : the role of fiber surface treatment." Thesis, Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/8569.

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Kadam, Ruthvik Dinesh. "Design and Additive Manufacturing of Carbon-Fiber Reinforced Polymer Microlattice with High Stiffness and High Damping." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/103009.

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Carbon fiber reinforced polymer (CFRP) composites are known for their high stiffness-to-weight and high strength-to-weight ratios and hence are of great interest in several engineering fields such as aerospace, automotive and defense. However, despite their light weight, high stiffness and high strength, their application in these fields is limited due to their poor energy dissipation and vibration damping capabilities. This thesis presents a two-phase microlattice design to overcome this problem. To realize this design, a novel tape casting integrated multi-material stereolithography system i

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Chen, Heng-Hsueh. "Damage Detection of Carbon Fiber Reinforced Polymer Using Electrical Measurement and Analysis of Acoustic Emission Signals." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1383455687.

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Curnutt, Austin. "Research on the mechanics of CFRP composite lap joints." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/38191.

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Master of Science<br>Department of Architectural Engineering<br>Donald J. Phillippi<br>For this thesis, research was performed on CFRP bonded composite lap-joints with one and two continuous laminas through the lap. Composite wraps used to retrofit existing structures use lap joints to maintain their integrity. The use of composites for retrofitting structures has many advantages over traditional methods, such as steel jacketing, and is becoming more widely accepted in the structural engineering industry. While much literature exists documenting the performance of composite wraps as a whole wh

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46

Walther, Brady M. "An Investigation of the Tensile Strength and Stiffness of Unidirectional Polymer-Matrix, Carbon-Fiber Composites under the Influence of Elevated Temperatures." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36803.

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Traditionally it was thought that the unidirectional strength in the fiber direction of fiber dominated composites was not influenced by the matrix material. As long as the fiber was not affected then the strength would remain. However this thesis will challange that belief. The unidirectional strength in the fiber direction of fiber dominated composites is influenced by the matrix material. The object of this study was to examine the quasi-static tensile strength of unidirectional polymer composites, and then use current analytic models to predict the experimental results. The different

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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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Heiderscheit, Timothy Donald. "Comparative study of near-infrared pulsed laser machining of carbon fiber reinforced plastics." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5946.

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Carbon fiber-reinforced plastics (CFRPs) have gained widespread popularity as a lightweight, high-strength alternative to traditional materials. The unique anisotropic properties of CFRP make processing difficult, especially using conventional methods. This study investigates laser cutting by ablation as an alternative by comparing two near-infrared laser systems to a typical mechanical machining process. This research has potential applications in the automotive and aerospace industries, where CFRPs are particularly desirable for weight savings and fuel efficiency. First, a CNC mill was used

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Barucci, Sara. "Studio dell’effetto di cicli termici su materiali CFRP (Carbon Fiber Reinforced Polymer) attraverso prove di caratterizzazione statica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4200/.

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L’intento di questa tesi è fornire un andamento di alcune proprietà dei materiali compositi in fibra di carbonio, CFRP, utilizzati soprattutto nell’ambito aeronautico e navale, esposti quindi a condizioni ambientali specifiche di variazione ciclica della temperatura. Lo studio è effettuato sulle prove di caratterizzazione statica, di compressione, flessione in tre punti e taglio interlaminare, che generano risultati sulla resistenza delle fibre e della matrice e sul modulo elastico a compressione e trazione del composito.

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Dawood, Mina Magdy Riad. "Fundamental Behavior of Steel-Concrete Composite Beams Strengthened with High Modulus Carbon Fiber Reinforced Polymer (CFRP) Materials." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-06292005-192140/.

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There is a growing need for a cost-effective, durable repair system that can be used for the repair and strengthening of steel bridges. Recently, high modulus carbon fiber reinforced polymers (CFRP) have been developed with a modulus of elasticity approximately two times greater than that of steel. Externally bonded high modulus CFRP materials have successfully been used to increase the elastic stiffness and ultimate capacity of steel-concrete composite beams However, since the technology is relatively new, the detailed behavior of steel bridge members strengthened with high modulus CFRP is no

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