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Rozprawy doktorskie na temat „Thermoplastic composite”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Li, Min-Chung. "Thermoplastic composite consolidation." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40036.

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Fabrication of high-quality composites from thennoplastic prepregs requires careful selection of the processing cycles so that intimate contact at the ply interfaces is achieved resulting in the formation of strong interply bonds and the process-induced residual stress is minimized to ensure superior mechanical performance. The void formation and the consolidation mechanism were studied experimentally. A refined model was developed to relate the processing parameters of pressure, temperature and time to the interply intimate contact of thermoplastic composites. The model was developed by integ

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2

Wu, Xiang. "Thermoforming continuous fiber reinforced thermoplastic composites." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/9383.

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Yang, Heechun. "Modeling the processing science of thermoplastic composite tow prepreg materials." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/17217.

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4

Norpoth, Lawrence R. "Processing parameters for the consolidation of thermoplastic composites." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/19099.

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5

ABDU, ALINE AMARAL QUINTELLA. "ELONGATIONAL BEHAVIOR OF COMPOSITE THERMOPLASTIC MATERIALS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=11520@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Os materiais termoplásticos compósitos, tais como o polipropileno reforçado com fibras de vidro curtas, são usados cada vez mais em diversos setores industriais. O reforço da fibra de vidro é uma forma utilizada para melhorar as propriedades mecânicas dos termoplásticos, devido ao elevado módulo das fibras e à melhor adesão entre as fibras e a matriz polimérica. No entanto, há poucas informações referentes às propriedades desses fluidos na literatura. No presente trabalho, um estudo das propriedades cisalhantes e elongacio

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6

Sandusky, Donald Allan. "Fabrication of thermoplastic polymer composite ribbon." W&M ScholarWorks, 1995. https://scholarworks.wm.edu/etd/1539616840.

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The goal of this research was to develop a controllable process to convert a thermoplastic powder-coated carbon-fiber towpreg into uniform and consolidated ribbon. The approach comprised four primary activities. (1) The patent and processing literature was studied to evaluate the state of the art. (2) A functional ribbon fabrication technique was developed by scaling-up, in a novel configuration, hardware components found in the literature. (3) The ex parte ribbonizing process was characterized by calibrating equipment, determining steady state and studying cause and effect between process par

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7

Song, Xiaolan. "Modeling of Thermoplastic Composite Filament Winding." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/35370.

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<p> Thermoplastic composite filament winding is an on-line consolidation process, where the composite experiences a complex temperature history and undergoes a number of temperature history affected microstructural changes that influence the structure's subsequent properties. These changes include melting, crystallization, void formation, degradation and consolidation. In the present study, models of the thermoplastic filament winding process were developed to identify and understand the relationships between process variables and the structure quality. These include models that describe the h

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8

Rohm, Kristen Nicole. "Thermoplastic Polyurethane: A Complex Composite System." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1625604511143102.

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9

Talbot, Edith. "Manufacturing process modelling of thermoplastic composite resistance welding." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=83934.

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One-, two- and three-dimensional transient heat transfer finite element models are developed to simulate the resistance welding process of pre-consolidated unidirectional AS4 carbon fibre reinforced Poly-ether-ether-ketone (APC-2/AS4) laminates with a metal mesh heating element, in a lap-shear configuration. The finite element models are used to investigate the effect of process and material parameters on the thermal behaviour of the coupon size welds, yielding to a better understanding of the process. The 1-D model determines: (a) the importance of including the latent heat of PEEK, an

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10

Peterson, Nels Royal. "Wood-thermoplastic composites manufactured using beetle-killed spruce from Alaska's Kenai Peninsula." Online access for everyone, 2008. http://www.dissertations.wsu.edu/Thesis/Summer2008/N_Peterson_060508.pdf.

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11

Schmitt, Ron R. "Viscoelastic relaxation in bolted thermoplastic composite joints." Thesis, Wichita State University, 1991. http://hdl.handle.net/10057/3988.

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Results from a research program to investigate the long term effects of through-the-thickness fastener clamp-up force (preload) relaxation on the strength of mechanically fastened joints for two graphite/thermoplastic composite materials (Dupont's IM6/KIII and ICI-Fiberite's IM8/APC(HTA)) are summarized and compared with analytical methods. An experimental program was conducted in which 56 mechanically fastened single-shear joints were tested. Phase I static tests established joint bearing strength as a function of clamp-up force for two types of fasteners (protruding head and countersink) wit

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12

Åkermo, Malin. "Compression moulding of thermoplastic composite sandwich components /." Stockholm, 1999. http://www.lib.kth.se/abs99/aker0422.pdf.

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13

Butt, Arif. "Resin flow characterization during thermoplastic composite consolidation." Thesis, Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/12010.

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14

Lee, Jaewoo. "Thermoplastic Composite with Vapor Grown Carbon Fiber." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1127335929.

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15

Howes, Jeremy C. "Interfacial strength development in thermoplastic resins and fiber-reinforced thermoplastic composites." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/77899.

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The objective of this study was to develop tests that could be used to characterize autohesive strength development in amorphous thermoplastic resins and fiber-reinforced thermoplastic prepregs. All tests were performed using polysulfone P1700 thermoplastic resin and AS4/P1700 graphite-polysulfone prepreg. Two test methods were examined to measure autohesion in neat resin samples. These included an interfacial tension test based on the ASTM tensile adhesion test (ASTM D897) and a fracture toughness test using a compact tension (CT) specimen (based on the ASTM toughness test for metals ASTM E

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16

Stevanović, Dejan. "Delamination properties of a vinyl-ester/glass fibre composite toughened by particle-modified interlayers /." View thesis entry in Australian Digital Theses Program, 2001. http://thesis.anu.edu.au/public/adt-ANU20030421.212730/index.html.

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17

Otheguy, Mariano E. "Manufacture, repair and recycling of thermoplastic composite boats." Thesis, University of Newcastle Upon Tyne, 2010. http://hdl.handle.net/10443/889.

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The design and construction of boats using thermoplastic composites (TPCs) is an emerging industry derived from the advantages these materials offer. Short manufacturing cycle times, virtually infinite shelf life, increased toughness, no volatiles emission, and the ability to be re‐processed and recycled, lead to improved processes and open new and more sustainable manufacturing possibilities for boats and other structures. However, the manufacture, repair and actual recycling of TPCs still present a number of technical challenges. This thesis addresses the five most important of these challen

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18

Liu, Xiao Bin. "Finite element analysis of hybrid thermoplastic composite structures." Thesis, University of Nottingham, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493330.

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A wide range of thermoplastic composites (TPC) are now being used in automotive applications including vehicle front-end structures, load floors, seat backs, door cassettes and instrument panels. Long fibre thermoplastics (LFT), glass mat thermoplastics (GMT) and fully structural materials such as woven commingled fabric TPCs, e.g. TwintexÂ®, provide a range of properties and mouldability appropriate to specific applications.

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19

Kulandaival, Palanivel Palaniathevar. "Manufacturing and performance of thermoplastic composite sandwich structures." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438298.

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20

Ekström, Lars Johan. "Welding of bistable fibre-reinforced thermoplastic composite pipelines." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614933.

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21

Derisi, Bijan. "Development of thermoplastic composite tubes for large deformation." Thesis, Connect to online version, 2008. http://proquest.umi.com/pqdweb?did=1675143241&sid=1&Fmt=2&clientId=10306&RQT=309&VName=PQD.

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22

Choupin, Tanguy. "Mechanical performances of PEKK thermoplastic composites linked to their processing parameters." Thesis, Paris, ENSAM, 2017. http://www.theses.fr/2017ENAM0043/document.

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Les thermoplastiques hautes performances poly(éther-cétone-cétone) (PEKK) sont actuellement étudiés avec un grand intérêt dans l’industrie aéronautique comme matrice pour la fabrication de pièces de structure composites renforcées par des fibres de carbone. En effet, les composites thermoplastiques PEKK ont l’avantage d’être consolidables hors autoclave et ont des températures de mise en œuvre plus faibles que les composites PEEK.L’objectif de cette étude est de comprendre et prédire l’évolution des propriétés mécaniques des composites PEKK suivant le cycle thermique de mise en œuvre pour déte

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23

Kuriger, Rex J. "Improved thermoplastic composite by alignment of vapor grown carbon fiber." Ohio : Ohio University, 2000. http://www.ohiolink.edu/etd/view.cgi?ohiou1179254413.

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24

Chazerain, Aurélie. "Characterization of resistance-welded thermoplastic composite double-lap joints." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=67019.

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An investigation of resistance welding of thermoplastic composite double-lap shear joints is presented. Double-lap shear specimens consisting of carbon fibre/poly-etherether-ketone (PEEK/CF), carbon fibre/poly-etherketone-ketone (PEKK/CF), carbon fibre/poly-ether-imide (PEI/CF) and glassfibre/poly-ether-imide (PEI/GF) were resistance-welded using a stainless steel mesh heating element. The objective of this work was to study the mechanical performances of the double lap shear resistance-welded joints and to compare them with the single lap shear resistance-welded joints. The

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25

Yang, Bing. "Thermoplastic and Thermoset Natural Fiber Composite and Sandwich Performance." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc500002/.

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The objective of this thesis is to investigate the effects of adding natural fiber (kenaf fiber, retted kenaf fiber, and sugarcane fiber) into polymer materials. The effects are obtained by considering three main parts. 1. Performance in thermoplastic composites. The effect of fiber retting on polymer composite crystallization and mechanical performance was investigated. PHBV/PBAT in 80/20 blend ratio was modified using 5% by weight kenaf fiber. Dynamic mechanical analysis of the composites was done to investigate the glass transition and the modulus at sub-ambient and ambient temperatures. ES

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26

Jackson, Mitchell L. "Modeling the microwave frequency permittivity of thermoplastic composite materials." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06232009-063055/.

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27

Van, der Westhuizen Artho Otto. "Impact response of a continuous fibre reinforced thermoplastic from a soft bodied projectile." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80095.

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Thesis (MScEng)--Stellenbosch University, 2013.<br>AFRIKAANSE OPSOMMING: Saamgestelde materiale het baie gewilde materiale in die lugvaart- en motor industrië geword as gevolg van die gewigsbesparende voordele wat dit inhou. Kostes en ander verwerkingsprobleme het tradisioneel die wydverspreide gebruik van spesifiek termoplasties-versterkte vesels in hierdie areas verhinder. Baie van die vervaardigingsprobleme (spesifiek lang siklusse) is aangespreek met die aanvang van termoplastiese matriks materiaal soos Polyphenolien Sulfied (PPS). Hierdie materiaal voldoen ook aan die lugvaart-indus

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28

Andersen, Bruce Jacob. "An experimental study of the automation of thermoplastic composite processing." Thesis, Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/19668.

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29

Umberger, Pierce David. "Characterization and Response of Thermoplastic Composites and Constituents." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/33574.

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The research presented herein is an effort to support computational modeling of ultra-high molecular weight polyethylene (UHMWPE) composites. An effort is made to characterize the composites and their constituents. UHMWPE, as a polymer, is time and temperature dependent. Using time-temperature superposition (tTSP), the constituent properties are studied as a function of strain rate. Properties that are believed to be significant are fiber tensile properties as a function of strain rate, as well as the through-thickness shear behavior of composite laminates. Obtaining fiber properties prove

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30

Adams, Daniel O'Hare. "Effects of layer waviness on compression-loaded thermoplastic composite laminates." Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-08252008-161903/.

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31

Michael, Steven Gerard. "Thermoplastic encapsulation of wood strand composite using a tie-layer." Pullman, Wash. : Washington State University, 2008. http://www.dissertations.wsu.edu/Thesis/Fall2008/S_Michael_120108.pdf.

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Thesis (M.S. in civil engineering)--Washington State University, December 2008.<br>Title from PDF title page (viewed on Mar. 10, 2009). "Department of Civil and Environmental Engineering." Includes bibliographical references.

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32

Brunnacker, Lena. "Short Carbon Fiber-Reinforced Thermoplastic Composites for Jet Engine Components." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76733.

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State-of-the-art aircraft engine manufactures aim to reduce theirenvironmental impact steadily. Thereby they attempt to increase engineefficiency, use new renewable fuel sources and most importantly aim toreduce component weight. While Titanium, Aluminum and continuousfiber reinforced thermosetting composites and superalloys prevail in thecurrent material selection, the present work desires to raise awareness fora novel group of materials; short carbon fiber reinforced thermoplasticcomposites (SCFRTPs). In this kind of composite short fibers givedimensional stability and strength while the the

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33

Aramphongphun, Chuckaphun. "In-mold coating of thermoplastic and composite parts microfluidics and rheology /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1141759615.

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34

McGarva, Lance. "Thermoplastic Composite Sandwich Components : Experimental and Numerical Investigation of Manufacturing Issues." Doctoral thesis, KTH, Aeronautical Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3345.

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35

Leach, David W. "An experimental study of the processing parameters in thermoplastic filament winding." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/16030.

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36

Paine, Jeffrey Steven Nelson. "The performance of nitinol shape memory alloy actuators embedded in thermoplastic composite material systems /." This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10102009-020117/.

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37

Dubé, Martine. "Static and fatigue behaviour of thermoplastic composite laminates joined by resistance welding." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=18695.

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This work investigates the mechanical behaviour of resistance-welded thermoplastic composites under both static and fatigue conditions for skin/stringer and lap shear welds. The first configuration was chosen in order to represent a typical reinforced aerospace composite structure. It consists of a flange laminate, representing a stringer or frame, welded onto a skin laminate. The effects of various resistance welding parameters on the weld quality and mechanical performance of a carbon fibre/poly-ether-ether-ketone (APC-2/AS4) composite skin/stringer are first investigated. The results show t

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38

Grünewald, Jonas [Verfasser], and Volker [Akademischer Betreuer] Altstädt. "Thermoplastic composite sandwiches for structural helicopter applications / Jonas Grünewald ; Betreuer: Volker Altstädt." Bayreuth : Universität Bayreuth, 2018. http://d-nb.info/1156920655/34.

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39

Papadakis, Nikolaos. "Strain rate dependency of the properties of a unidirectional thermoplastic composite material." Thesis, University of Warwick, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396872.

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40

Zoller, Alexander. "Development and kinetic modeling of resins for advanced thermoplastic polymer composite materials." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4728.

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L’objectif de cette thèse est de développer un matériau à base de polyméthacrylate de méthyle (PMMA) amorcé par une réaction redox à température ambiante pour produire des composites thermoplastiques. Plus particulièrement, notre travail a consisté à étudier le mécanisme d’amorçage afin d’améliorer la formulation de la résine en terme de cinétique de polymérisation. Afin d’atteindre cet objectif, les paramètres d’Arrhenius de la décomposition d’amorceur ont été déterminés et intégrés dans un modèle de simulation numérique décrivant la polymérisation du MMA à température ambiante développé à l’

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Zoller, Alexander. "Development and kinetic modeling of resins for advanced thermoplastic polymer composite materials." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4728.

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L’objectif de cette thèse est de développer un matériau à base de polyméthacrylate de méthyle (PMMA) amorcé par une réaction redox à température ambiante pour produire des composites thermoplastiques. Plus particulièrement, notre travail a consisté à étudier le mécanisme d’amorçage afin d’améliorer la formulation de la résine en terme de cinétique de polymérisation. Afin d’atteindre cet objectif, les paramètres d’Arrhenius de la décomposition d’amorceur ont été déterminés et intégrés dans un modèle de simulation numérique décrivant la polymérisation du MMA à température ambiante développé à l’

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42

Fallon, Jake Jeffrey. "Structure-Process-Property Relationships of Cellulose Nanocrystal Thermoplastic Urethane Composites." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/103053.

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Nanomaterials are becoming increasingly prevalent in final use products as we continue to improve our understanding of their structure and properties and optimize their processing. The useful applications for these materials extend from new drug delivery systems to improved materials for various transport industries and many more. Nanoscale materials which are commonly used include but are not limited to carbon nanotubes, graphene, silica, nanoclays, and cellulose nanocrystals. The literature presented herein aims to investigate structure-process-property relationships of cellulose nanocrystal

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43

Hastie, Robert L. "The effect of physical aging on the creep response of a thermoplastic composite." Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-07282008-134037/.

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44

Chatterjee, Sanjukta. "Structural and Physical Effects of Carbon Nanofillers in Thermoplastic and Thermosetting Polymer Systems." Doctoral thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-171449.

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Ever since the discovery of carbon nano materials like carbon nanotube (CNT) and graphene, this class of materials has gained significant attention due to their exotic properties. The principle idea of my present research project is to understand the novel improvements induced in polymer matrices with inclusion of the nanofillers. This thesis is thematically divided into three parts. In the first part we introduce principle materials that we use for preparation of composites. Methods of nanofiller preparation and different nanocomposites as previously reported in literature are discussed to fo

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45

Damadzadeh, Behzad, and Hamideh Jabari. "Biodegradable Composites : Processing of thermoplastic polymers for medical applications." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19329.

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Despite the recent development in PLA and PLGA based medical devices, there are still needs to further improve the mechanical performance of bioresorbable medical implants and their bioactivity. This is normally done by optimizing the filler compositions in selected groups ofbiodegradable polymer matrices. In this study, the effects of various filler levels on mechanical strength and thermal properties of PLA and PLGA composites were investigated. Composites containing different dosage of osteoconductive HAp with various particles size (0-5μm, 0-50 μm, nano size), β-TCP, bioactive glass and bi

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46

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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47

Umberger, Pierce David. "Modeling the High Strain Rate Tensile Response and Shear Failure of Thermoplastic Composites." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23846.

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The high strain rate fiber direction tensile response of Ultra High Molecular Weight Polyethylene (UHMWPE) composites is of interest in applications where impact damage may occur. This response varies substantially with strain rate. However, physical testing of these composites is difficult at strain rates above 10^-1/s. A Monte Carlo simulation of composite tensile strength is constructed to estimate the tensile behavior of these composites. Load redistribution in the vicinity of fiber breaks varies according to fiber and matrix properties, which are in turn strain rate dependent. The dis

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48

Margossian, Alexane [Verfasser]. "Forming of tailored thermoplastic composite blanks: material characterisation, simulation and validation / Alexane Margossian." München : Verlag Dr. Hut, 2017. http://d-nb.info/1137024399/34.

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49

Masi, Barbara Ann. "Fabrication methods and costs for thermoset and thermoplastic composite processing for aerospace applications." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/72739.

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50

Claassen, Marius. "A reconfigurable manufacturing system for thermoplastic fibre-reinforced composite parts : a feasibility assessment." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97045.

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Thesis (MEng)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: The South African manufacturing industry plays a pivotal role in the growth of its local economy. Modern manufacturing requirements include the ability to respond quickly to product variability, fluctuations in product demand and new process technologies. The reconfigurable manufacturing paradigm has been proposed to meet the demands of the new manufacturing requirements. In order to assess the feasibility of incorporating automated, reconfigurable manufacturing technologies into the production process of thermoplastic fibre-re

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