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Dissertations / Theses on the topic 'Mechanical Properties of Composites'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Drodge, Daniel Ryan. "Mechanical properties of energetic composites." Thesis, University of Cambridge, 2010. https://www.repository.cam.ac.uk/handle/1810/265501.

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This thesis presents research into the mechanical response of particulate polymer composites, both energetic and inert, that contributes towards the wider understanding of deformation and damage mechanisms in Polymer Bonded Explosive (PBXs). Specifically, high and low strain-rate compression experiments were performed on several composites, with a view to measuring their elastic properties. A brief review of PBXs, polymers and particulate composites forms chapter 1. A key piece of mechanical testing apparatus, the Split Hopkinson Pressure Bar (SHPB), is critically assessed in chapters 2 and 3.

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2

Miao, Yuyang. "Mechanics of textile composites : from geometry to mechanical properties /." Search for this dissertation online, 2005. http://wwwlib.umi.com/cr/ksu/main.

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3

Jiang, Mingxiao. "Scale and boundary conditions effects in fiber-reinforced composites." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16373.

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4

Savage, Gary. "Mechanical properties of carbon/graphite composites." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38153.

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5

Yttergren, Rose-Marie. "Mechanical properties of laminated ceramic composites /." Stockholm : Tekniska högsk, 1999. http://www.lib.kth.se/abs99/ytte0910.pdf.

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6

Gardham, Louise Marie. "Dynamic mechanical properties of polymer composites." Thesis, University of Leeds, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395322.

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7

Loveless, Thomas A. "Mechanical Properties of Kenaf Composites Using Dynamic Mechanical Analysis." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4310.

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Natural fibers show potential to replace glass fibers in thermoset and thermoplastic composites. Kenaf is a bast-type fiber with high specific strength and great potential to compete with glass fibers. In this research kenaf/epoxy composites were analyzed using Dynamic Mechanical Analysis (DMA). A three-point bend apparatus was used in the DMA testing. The samples were tested at 1 hertz, at a displacement of 10 μm, and at room temperature. The fiber volume content of the kenaf was varied from 20%-40% in 5% increments. Ten samples of each fiber volume fraction were manufactured and tested. The

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8

Gooch, Christie M. "The effects of processing on the mechanical properties and durability of PETI-5 resins." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/16811.

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9

Sun, Ying. "Mechanical properties of carbon nanotube/metal composites." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4611.

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Carbon nanotubes (CNTs) have captured a great deal of attention worldwide since their discovery in 1991. CNTs are considered to be the stiffest and strongest material due to their perfect atomic arrangement and intrinsic strong in-plane sp[super]2--sp[super]2 covalent bonds between carbon atoms. In addition to mechanical properties, CNTs have also shown exceptional chemical, electrical and thermal properties. All these aspects make CNTs promising candidates in the development of novel multi-functional nanocomposites. Utilizing CNTs as fillers to develop advanced nanocomposites still remains a

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10

Ajwani, Anita. "Mechanical properties of bio-absorbable materials." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-12042009-020133/.

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11

Leaity, M. A. "Mechanical properties of hybrid-matrix composite laminates." Thesis, University of Surrey, 1991. http://epubs.surrey.ac.uk/843941/.

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A laboratory scale drum winder has been designed and built for the production of pre-preg. Cross-ply hybrid matrix laminates were made from the pre-preg with glass fibres/epoxy resin in the longitudinal plies and glass fibres/epoxy resin-urethane elastomer in the transverse ply. The addition of urethane to the matrix in the transverse plies alone increased the applied strains necessary for the initiation and development of transverse cracking during the extension of cross-ply laminates. This resulted in a smaller reduction in laminate stiffness (due to damage) at a prescribed level of strain.

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12

Ellerby, Donald Thomas. "Processing and mechanical properties of metal-ceramic composites with controlled microstructure formed by reactive metal penetration /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/10583.

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13

Downes, Terry James. "The mechanical properties of aluminium-lithium based composites." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281894.

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14

Butsch, Susan Laurel. "Mechanical and physical properties of particulate reinforced composites." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-10312009-020333/.

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15

Shirkavand, Mahmoud. "The mechanical properties of autoclaved superplasticized calcium silicate." Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315445.

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16

Sparnins, Edgars. "Mechanical properties of flax fibers and their composites." Doctoral thesis, Luleå, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26640.

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Flax fibers, along with a number of other natural fibers, are being considered as an environmentally friendlier alternative of synthetic fibers in fiber-reinforced polymer composites. A common feature of natural fibers is a much higher variability of mechanical properties. This necessitates study of the flax fiber strength distribution and efficient experimental methods for its determination. Elementary flax fibers of different gauge lengths are tested by single fiber tension in order to obtain the stress-strain response and strength and failure strain distributions. The applicability of singl

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17

Sparnins, Edgars. "Mechanical properties of flax fibers and their composites." Licentiate thesis, Luleå tekniska universitet, Materialvetenskap, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-16871.

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Flax fibers, along with a number of other natural fibers, are being considered as an environmentally friendly alternative of synthetic fibers in fiber-reinforced polymer composites. A common feature of natural fibers is a much higher variability of mechanical properties. This necessitates study of the flax fiber strength distribution and efficient experimental methods for its determination. Elementary flax fibers of different gauge lengths are tested by single fiber tension in order to obtain the stress-strain response and strength and failure strain distributions. The applicability of single

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18

Spārniņš, Edgars. "Mechanical properties of flax fibers and their composites." Luleå : Luleå tekniska universitet,Tillämpad fysik, maskin- och materialteknik, Polymerteknik, 2006. http://epubl.ltu.se/1402-1757/2006/60/LTU-LIC-0660-SE.pdf.

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19

Lin, Xiude. "Mechanical properties of transversely isotropic fibre network composites." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/116360/.

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Fibre reinforced composites have been widely applied to many fields for their extraordinary mechanical and other physical properties such as thermal and electric conduction etc. The structure of the composites can be crucial to the overall mechanical properties of the composites. The designed fibre-network composite in this research is inspired by fibrous materials with overlap, such as metal fibre sintered sheet (MFSS). With a fibre network instead of uncontacted fibres as the reinforcement, the composite is expected to produce enhanced mechanical properties. Based on the designed transversel

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20

Kueh, Ahmad Beng Hong. "Thermo-mechanical properties of triaxial weave fabric composites." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612022.

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21

Hankla, Lorenzo W. "Mechanical properties of particulate-reinforced boron carbide composites." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002749.

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22

Spārniņš, Edgars. "Mechanical properties of flax fibers and their composites /." Luleå : Division of Polymer Engineering, Luleå University of Technology, 2009. http://pure.ltu.se/ws/fbspretrieve/3353745.

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23

Palos, Artemio. "Mechanical Properties of Polymer Modified Mortar." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3173/.

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The mechanical properties of the polymer-modified mortar are markedly improved over conventional cement mortar. We utilized recycled ABS in powder form and a polymer latex emulsion, polymer percentage ranges from 0 to 25 percent by polymer/cement ratio were investigated. The mechanical properties investigated were compression strength and adhesion strength. Compression strength effects did not have an impact on adhesion strength. Adhesion strength was calculated with pullout testing apparatus designed by the author. Results indicate that recycled ABS had a lower adhesive strength than the acr

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24

Ghassemieh, Elaheh. "Finite element modelling of mechanical properties of polymer composites." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/7075.

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Polymeric composites are used widely in modern industry. The prediction of mechanical behaviour of these material under different loadings is therefore of vital importance in many applications. Mathematical modelling offers a robust and cost effective method to satisfy this objective. In this project a comprehensive finite element model for particulate and fibre reinforced composites is developed. The most significant features of this model are: The inclusion of slip boundary conditions: The inclusion of flux terms across the inter-phase boundaries to take the discontinuity of the material pro

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25

Chaudhuri, Rehnooma I. "Effect of low profile additives on thermo-mechanical properties of fibreUP composites." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99752.

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Low profile additives (LPA) are thermoplastics that are incorporated to unsaturated polyester (UP) resins in order to improve the surface finish of UP/fibreglass composites, widely used in automotive applications. The effect of using LPA on the thermo-mechanical properties of resin transfer moulded UP/fibreglass composites is investigated. The flexural and shear properties are measured by three-point bending tests. The trend of these mechanical properties is identified for 0% to 40% LPA content. All the mechanical properties like flexural strength, flexural modulus and short beam strength redu

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26

Ganczakowski, Helena Louise. "Aspects of the mechanical properties of KFRP laminates." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238640.

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27

Wang, J., S. Dong, Ashraf F. Ashour, X. Wang, and B. Han. "Dynamic mechanical properties of cementitious composites with carbon nanotubes." Elsevier, 2019. http://hdl.handle.net/10454/17465.

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Yes<br>This paper studied the effect of different types of multi-walled carbon nanotubes (MWCNTs) on the dynamic mechanical properties of cementitious composites. Impact compression test was conducted on various specimens to obtain the dynamic stress-strain curves and dynamic compressive strength as well as deformation of cementitious composites. The dynamic impact toughness and impact dissipation energy were, then, estimated. Furthermore, the microscopic morphology of cementitious composites was identified by using the scanning electron microscope to show the reinforcing mechanisms of MWCNTs

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28

Espert, Ana. "Srategies for improving mechanical properties of polypropylene/cellulose composites." Doctoral thesis, KTH, Fibre and Polymer Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-179.

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<p>The interest for polypropylene/cellulose composites has experienced a great increase in different applications such as car interiors and construction materials. Cellulose fibres are inexpensive, renewable, biodegradable, they present lower density and their mechanical properties can be compared to those of inorganic fillers. However, several factors must be considered when designing polypropylene/cellulose composites: the poor compatibility between the hydrophilic fibres and the hydrophobic thermoplastic matrix leads to a weak interface, which has to be improved by coupling agents; the hydr

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29

Song, Jia [Verfasser]. "Microstructure and Mechanical Properties of NiAl Composites / Jia Song." Aachen : Shaker, 2012. http://d-nb.info/1069045187/34.

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30

Qian, Chang. "Environmental effects on some mechanical properties of fibre composites." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58748.pdf.

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31

Espert, Ana. "Strategies for improving mechanical properties of polypropylene/cellulose composites." Doctoral thesis, Stockholm : Fiber- och polymerteknologi, KTH, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-179.

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32

Buckley, Patrick Joseph. "Mechanical properties of polymethyl methacrylate cement and bone composites." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394589.

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33

Matveev, Mikhail Y. "Effect of variabilities on mechanical properties of textile composites." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/29419/.

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This work explores effects of selected sources of variability on mechanical properties of textile composites. Current modelling approaches rely on an idealised representation of the geometry and properties of composites while in reality the properties are not uniform and the structure has local variations. Existing approaches to model these variations showed that they can affect manufacturing processes for textile composites and compressive strength of unidirectional composites. This work is an attempt to extend existing methods for modelling of idealised composites and combine them with stoch

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34

Alrahlah, Ali Awad. "Physical, mechanical and surface properties of dental resin-composites." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/physical-mechanical-and-surface-properties-of-dental-resincomposites(213a08bf-5791-4e1c-bce9-a45ca268d1d3).html.

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Since resin composites were first presented to dentistry more than half a century ago, the composition of resin composites has developed significantly. One major change was that the reinforcing filler particles were reduced in size to generate materials of a given filler content that display better physical and mechanical properties. Resin composites may absorb water and chemicals from the surrounding environment but at the same time, composites may release constituents to their surroundings. The physical/mechanical properties of a restorative material provide an indication of how the material

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35

Bakar, Azhar Abu. "Micro- and macro-mechanical properties in advanced polymer matrix composites." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301430.

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36

Mohr, Benjamin J. "Durability of Pulp Fiber-Cement Composites." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7222.

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Wood pulp fibers are a unique reinforcing material as they are non-hazardous, renewable, and readily available at relatively low cost compared to other commercially available fibers. Today, pulp fiber-cement composites can be found in products such as extruded non-pressure pipes and non-structural building materials, mainly thin-sheet products. Although natural fibers have been used historically to reinforce various building materials, little scientific effort has been devoted to the examination of natural fibers to reinforce engineering materials until recently. The need for this type of f

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37

Brockmann, Tanja. "Mechanical and fracture mechanical properties of fine grained concrete for textile reinforced composites." Aachen : Mainz, 2005. http://deposit.d-nb.de/cgi-bin/dokserv?idn=97972127X.

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38

Chanda, S. "The mechanical properties of a pulverised fuel ash blended cement paste." Thesis, University of Surrey, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370690.

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39

Shih, Nai-Chien. "The mechanical properties of SiC fibre for high temperature MMC applications." Thesis, Cranfield University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385925.

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40

Fan, Zhongyun. "Microstructure and mechanical properties of multiphase materials." Thesis, University of Surrey, 1993. http://epubs.surrey.ac.uk/776187/.

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A systematic method for quantitative characterisation of the topological properties of two-phase materials has been developed, which offers an effective way for the characterisation of twophase materials. In particular, a topological transformation has been proposed, which allows a two-phase microstructure with any grain size, grain shape and phase distribution to be transformed into a three-microstructural-element body (3-E body). It has been shown that the transformed 3·E body is mechanically equivalent along the aligned direction with the original microstructure. The Hall·Petch relation dev

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41

Amirkhizi, Alireza Vakil. "Multifunctional composites and structures with integrated mechanical and electromagnetic properties." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3237550.

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Thesis (Ph. D.)--University of California, San Diego, 2006.<br>Title from first page of PDF file (viewed December 12, 2006). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references.

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42

Safari, Samira. "Early-age mechanical properties and electrical resistivity of geopolymer composites." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/13379.

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Cement-less and/cement-like geopolymer mortars were made with pulverised fuel ash (PFA) or ground granulated blast furnace slag (GGBS) activated by alkali with different alkali moduli (AM) and alkali dosage (AD). Once synthesised the samples were cured at 20°C and 70°C up to 28 days. The flexural and compressive strengths of these samples at early ages up to 28 days were tested conforming to BS EN196-1:2005. The electrical resistivity of these materials was monitored using a set of non-contacting electrodes to the age up to 7 days to characterise the geopolymerisation process from a physical p

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43

Chang, Paul, and mrpc@tpg com au. "The Mechanical Properties and Failure Mechanisms of Z-Pinned Composites." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070111.145714.

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Z-pinning is a through-thickness reinforcement technology for polymer composite materials that has been developed and commercialised over the past fifteen years. The through-thickness reinforcement of composites with thin metallic or fibrous pins aids in suppressing delamination, improving impact damage tolerance and increasing joint strength. Z-pins are applied to the composite part during its manufacture. Pins are embedded within sheets of foam and placed over the unconsolidated part. Subsequently, the foam is compacted and the pins transferred into the part, which is usually an uncured pr

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44

Blacklock, Matthew. "Thermo-Mechanical coupling of the properties of ceramic matrix composites." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511847.

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45

Mushi, Ngesa Ezekiel. "Chitin nanofibers, networks and composites : Preparation, structure and mechanical properties." Doctoral thesis, KTH, Biokompositer, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155528.

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Chitin is an important reinforcing component in load-bearing structures in many organisms such as insects and crustaceans (i.e. shrimps, lobsters, crabs etc.). It is of increasing interest for use in packaging materials as well as in biomedical applications. Furthermore, biological materials may inspire the development of new man-made material concepts. Chitinmolecules are crystallized in extended chain conformations to form nanoscale fibrils of about 3 nm in diameter. In the present study, novel materialshave been developed based on a new type of chitin nanofibers prepared from the lobster ex

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46

Aksel, Cemail. "Thermal shock behaviour and mechanical properties of magnesia-spinel composites." Thesis, University of Leeds, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275609.

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47

Xu, Huicheng. "Linking interfacial performance to the mechanical properties of fibre composites." Thesis, University of Sheffield, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419627.

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48

Matthams, Thomas James. "The mechanical properties of micro-perforated long fibre thermoplastic composites." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392785.

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49

Saharudin, Mohd. "Mechanical properties of polyester nano-composites exposed to liquid media." Thesis, Northumbria University, 2017. http://nrl.northumbria.ac.uk/36179/.

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Halloysite nanotubes (HNTs) offer excellent improvements in wide range of physical and engineering properties at low filler content. Due to their outstanding properties such as large aspect ratio, high surface area, flame retardant and good optical clarity, HNTs polymer nanocomposites are widely used in automotive, coating, packaging and medical devices. The results showed that the incorporation of halloysite nanotubes (HNTs) into polyester significantly improved dynamic mechanical properties of the nanocomposites including the glass transition temperature (Tg), storage moduli, microhardness,

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50

Ege, Duygu. "Mechanical and degradation properties of calcium phosphate/biodegradable polymer composites." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607998.

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