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Dissertations / Theses on the topic 'Composite Laminate'

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Published: 4 June 2021
Last updated: 26 July 2025

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1

Adams, David Bruce. "Blending Methods for Composite Laminate Optimization." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34815.

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Composite panel structure optimization is commonly decomposed into panel optimization subproblems, with specified local loads, resulting in manufacturing incompatibilities between adjacent panel designs. Using genetic algorithms to optimize local panel stacking sequences allows panel populations of stacking sequences to evolve in parallel and send migrants to adjacent panels, so as to blend the local panel designs globally. The blending process is accomplished using the edit distance between individuals of a population and the set of migrants from adjacent panels. The objective function eva
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2

Palazzetti, Roberto <1984&gt. "Electrospun nanofibrous interleaves in composite laminate materials." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5245/1/Tesi.pdf.

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The present work aims for investigate the influence of electrospun Nylon 6,6 nanofibrous mat on the behavior of composite laminates. The main idea is that nanofibrous interleaved into particular ply-to-ply interfaces of a laminate can lead to significant improvements of mechanical properties and delamination/damage resistance. Experimental campaigns were performed to investigate how nanofibers affect both the static and dynamic behavior of the laminate in which they are interleaved. Fracture mechanics tests were initially performed on virgin and 8 different configuration of nanomodified speci
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3

Palazzetti, Roberto <1984&gt. "Electrospun nanofibrous interleaves in composite laminate materials." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5245/.

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The present work aims for investigate the influence of electrospun Nylon 6,6 nanofibrous mat on the behavior of composite laminates. The main idea is that nanofibrous interleaved into particular ply-to-ply interfaces of a laminate can lead to significant improvements of mechanical properties and delamination/damage resistance. Experimental campaigns were performed to investigate how nanofibers affect both the static and dynamic behavior of the laminate in which they are interleaved. Fracture mechanics tests were initially performed on virgin and 8 different configuration of nanomodified speci
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4

Joyce, Peter James. "Experimental investigation of defect criticality in FRP laminate composites /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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5

Schmidt, Andrew S. (Andrew Stephen). "Three-dimensional analysis of composite laminate edge effects." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22674.

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In this study, the edge effects of composite laminates are investigated mathematically. The presence of stress singularities at the ply interfaces along the free edges is studied. The importance of determining all terms, including interlaminar stresses, in investigating the failure of composite plates is also shown. The simple composite plate, the pin-loaded composite plate, and the bolt-loaded composite plate are analyzed three-dimensionally.<br>A new "slice" model is developed to simulate the simple composite plate. Three-dimensional finite element analysis is performed with the "slice" mode
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6

Adams, David Bruce. "Optimization Frameworks for Discrete Composite Laminate Stacking Sequences." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28631.

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Composite panel structure optimization is commonly decomposed into panel optimization subproblems, with specied local loads, resulting in manufacturing incompatibilities between adjacent panel designs. Using genetic algorithms to optimize local panel stacking sequences allows panel populations of stacking sequences to evolve in parallel and send migrants to adjacent panels, so as to blend the local panel designs globally. The blending process is accomplished using the edit distance between individuals of a population and the set of migrants from adjacent panels. The objective function evaluati
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7

Soremekun, Grant A. E. "Genetic Algorithms for Composite Laminate Design and Optimization." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36699.

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Genetic algorithms are well known for being expensive optimization tools, especially if the cost for the analysis of each individual design is high. In the past few years, significant effort has been put forth in addressing the high computational cost GAs. The research conducted in the first part of this thesis continues this effort by implementing new multiple elitist and variable elitist selection schemes for the creation of successive populations in the genetic search process. The new selection schemes allow the GA to take advantage of a greater amount of important genetic information that
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8

Hepworth, Ammon Ikaika No Kapono. "Methods to Streamline Laminate Composite Design, Analysis, and Optimization." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2405.

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Advanced composite materials have seen major market growth in recent years due to their high strength and low weight properties. These materials are often made using a process that creates a composite laminate by stacking several composite layers together. However, the design, analysis and optimization of laminate composite materials are often a labor intensive process when done manually. This thesis discusses CAD independent algorithms that are integrated into commercial CAD tools to streamline these processes. Methods have been developed to automatically create 3D ply geometry for a laminate
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9

Barbero, Ever J. "On a generalized laminate theory with application to bending, vibration, and delamination buckling in composite laminates." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54484.

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In this study, a computational model for accurate analysis of composite laminates and laminates with including delaminated interfaces is developed. An accurate prediction of stress distributions, including interlaminar stresses, is obtained by using the Generalized Laminate Plate Theory of Reddy in which layer-wise linear approximation of the displacements through the thickness is used. Analytical, as well as finite-element solutions of the theory, are developed for bending and vibrations of laminated composite plates for the linear theory. Geometrical nonlinearity, including buckling and post
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10

Timarci, Taner. "Vibrations of composite laminated cylindrical shells." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283227.

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11

Weight, Shilo Willis. "A novel wood-strand composite laminate using small-diameter timber." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Spring2007/s_weight_050207.pdf.

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12

Southard, Bari M. (Bari Marc). "On the variability of composite laminate properties : prediction and minimization." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/47399.

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13

Williams, J. "An assessment of low velocity impact damage of composite structures." Thesis, University of the West of Scotland, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377571.

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14

Hartman, Timothy Benjamin. "Geometrically Nonlinear Stress Recovery in Composite Laminates." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/50597.

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Composite laminates are increasingly being used as primary load bearing members in<br />structures.  However, because of the directional dependence of the properties of<br />composite materials, additional failure modes appear that are absent in<br />homogeneous, isotropic materials.  Therefore, a stress analysis of a composite<br />laminate is not complete without an accurate representation of the transverse<br />(out-of-plane) stresses.<br /><br />Stress recovery is a common method to estimate the transverse stresses from a<br />plate or shell analysis.  This dissertation extends stress reco
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15

Ananthasubramanian, Srikanth, and Priyank Gupta. "Early assessment of composite structures : Framework to analyse the potential of fibre reinforced composites in a structure subjected to multiple load case." Thesis, KTH, Lättkonstruktioner, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235309.

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To meet the need of lightweight chassis in the near future, a technological step of introducing anisotropic materials like Carbon Fibre Reinforced Plastics (CFRP) in structural parts of cars is a possible way ahead. Though there are commercially available tools to find suitability of Fibre Reinforced Plastics (FRPs) and their orientations, they depend on numerical optimization and complexity increases with the size of the model. Nevertheless, the user has a very limited control of intermediate steps. To understand the type of material system that can be used in different regions for a lightwei
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16

Li, Edward. "Characterization of mechanical and fatigue properties for a hybrid titanium composite laminate." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/19897.

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17

Teitelbaum, Heather K. Walker Mary P. "Effects of simulated functional loading conditions on dentin, composite, and laminate structures." Diss., UMK access, 2007.

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Thesis (Ph. D.)--School of Dentistry. University of Missouri--Kansas City, 2007.<br>"A dissertation in oral biology and engineering." Advisor: Mary P. Walker. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed July 30, 2008. Includes bibliographical references (leaves 110-126). Online version of the print edition.
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18

Lloyd, James C. "Impact damage and damage tolerance of fibre reinforced advanced composite laminate structures." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/6891.

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The primary objective of this work is to experimentally examine the effect of various geometric parameters on the impact damage and damage tolerance of thin carbon/epoxy plate and panel structures. Due to the number of parameters involved in a low velocity impact event and the complexity of the damage created, determining what effect individual parameters have is extremely demanding, especially when some of the parameters may even be coupled. However, by experimentally simulating in a controlled manner, either the impact event or the damage created, the effect of individual geometric parameter
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19

Lee, Jeonyoon. "Nanomaterial-enabled manufacturing for next-generation multifunctional advanced composite prepreg laminate architectures." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120256.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 179-193).<br>Manufacturing of advanced aerospace-grade structural composites has traditionally utilized autoclaves to impart heat and pressure, in addition to vacuum, to create high-quality, void (defect)- free, reproducible structures. Carbon (micro) fiber reinforced polymer (CFRP) composites, which are pre-impregnated with a thermoset or thermoplastic polymer to form prepreg sheets, are in widespread use via
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20

Minnaar, Karel. "Experimental and numerical analyses of damage in laminate composites under low velocity impact loading." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/15812.

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21

Barre, Vincent Henri. "Determination of a local damage threshold criterion for a laminate glass/epoxy under an intermediate rate of loading." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/18216.

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22

Ghinet, Sebastian. "Statistical energy analysis of the transmission loss of sandwich and laminate composite structures." Thèse, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/1770.

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The present study emerges from a present industry need for accurate and fast numerical modeling approaches to estimate the vibro-acoustic behaviours of multilayered composite and viscoelastic treatments configurations.The structure is modeled using a wave approach applied to various multilayer configurations such as: symmetrical laminate composite, symmetrical sandwich composite and general symmetrical or unsymmetrical laminate or sandwich composite as well as viscoelastic treatments. Three behavioural modeling approaches are investigated: smeared laminate, discrete layer sandwich and general
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23

McMahon, Mathew T. "A Distributed Genetic Algorithm With Migration for the Design of Composite Laminate Structures." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36962.

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This thesis describes the development of a general Fortran 90 framework for the solution of composite laminate design problems using a genetic algorithm (GA). The initial Fortran 90 module and package of operators result in a standard genetic algorithm (sGA). The sGA is extended to operate on a parallel processor, and a migration algorithm is introduced. These extensions result in the distributed genetic algorithm with migration (dGA). The performance of the dGA in terms of cost and reliability is studied and compared to an sGA baseline, using two types of composite laminate design probl
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24

Brown, Dennis P. "Development of a new type of composite material a glass based laminate cermet /." College Park, Md.: University of Maryland, 2006. http://hdl.handle.net/1903/7139.

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Thesis (M.S.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Dept. of Materials and Nuclear Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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25

Nosti, Christopher James. "PERFORMANCE ANALYSIS AND LIFE PREDICTION FOR SMALL WIND TURBINE BLADES: A WOOD LAMINATE CASE STUDY." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/154.

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A detailed study of the fatigue life of wooden wind turbine blades for a new 10 kilowatt system was undertaken. A numerical model of the blades was created using the technical software package MATLAB in order to estimate the maximum stress occurring within the blade in response to changes in wind velocities based on a wind profile approximating the location where these turbines are expected to operate. The material properties of the wooden laminate were measured using an Instron tensile test machine and were found to be in line with published values. In parallel with this effort, a three di
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26

Mahmoud, Bassam. "Modélisation d'impacts sur des stratifiés composites unidirectionnels et hybrides." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30212.

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Les structures aéronautiques sont aujourd’hui largement réalisées à partir de matériaux composites, permettant ainsi d’en diminuer la masse. L’impact sur structure composite est une des sources de dommage la plus courante et la plus pénalisante. L’objectif de cette thèse est de développer un modèle prédictif d’impact sur stratifiés unidirectionnels de faible épaisseur afin, dans un premier temps, de mieux comprendre les mécanismes d’endommagement mis en jeu et, dans un deuxième temps, de pouvoir proposer des pistes d’amélioration de la tenue de ces structures. La première étape de ces travaux
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27

Cunningham, Brent David. "The Development of Compression Moldable Polymer Composite Bipolar Plates for Fuel Cells." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/26197.

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The development, design, and modeling of a rapid continuous processing scheme is developed to economically manufacture conductive polymer composite bipolar plates for fuel cells. Bipolar plates are required to possess several important properties for fuel cell operation, with the most sought after being electrical conductivity and mechanical strength. The polymer composite material generated at Virginia Tech is based on material generated by a wet-lay process and uses polyethylene terepthalate (PET) or polyphenylene sulfide (PPS) as the binder, although PPS is mainly used. In order to reach
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28

Hart, Robert James. "Characterization of carbon fiber polymer matrix composites subjected to simultaneous application of electric current pulse and low velocity impact." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/1143.

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The use of composite materials in aerospace, electronics, and wind industries has become increasingly common, and these composite components are required to carry mechanical, electrical, and thermal loads simultaneously. A unique property of carbon fiber composites is that when an electric current is applied to the specimen, the mechanical strength of the specimen increases. Previous studies have shown that the higher the electric current, the greater the increase in impact strength. However, as current passes through the composite, heat is generated through Joule heating. This Joule heating c
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29

Baskin, Cem Ismail. "Finite Element Analysis Of Composite Laminates Subjected To Axial &amp." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12604975/index.pdf.

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This thesis focuses on the investigation of behavior of thick and moderately thick laminates under transverse and horizontal loading for different boundary conditions and configurations. An efficient finite element solution is proposed for analyzing composite laminates. Based on a combination of composite theory and 3-D Elasticity Theory, a 3-D finite element program is developed in MATLAB for calculating the stresses, strains and deformations of composite laminates under transverse and/or horizontal loading for different boundary conditions. The applicability of the formulation to analysis of
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30

Marques, Maria Gorett dos Santos. "Estudo das propriedades físicas e mecânicas e da durabilidade de compósitos cimentícios reforçados com fibra amazônica." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-15022016-091455/.

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O presente estudo tem como objetivo principal desenvolver um compósito cimentício reforçado com fibras de arumã. O intuito é agregar valor a uma planta típica da região Amazônica, denominada arumã, pertencente à espécie do gênero Ischnosiphon arouma (aubl) Korn e originária da família Maranthaceae, de tal modo que possa ser obtido um Novo Material. Na primeira etapa do estudo foi realizada a caracterização da fibra vegetal de arumã e de todos os componentes da matriz cimentícia, a qual compreendeu ensaios químicos, físicos e mecânicos para a investigação e avaliação de suas propriedades. Na et
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31

Machado, Carla Maria Moreira. "Empirical models for quantification of machining damage in composite materials." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/9058.

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Dissertação para obtenção do Grau de Doutor em Engenharia Mecânica<br>The tremendous growth which occurs at a global level of demand and use of composite materials brings with the need to develop new manufacturing tools and methodologies. One of the major uses of such materials, in particular plastics reinforced with carbon fibres, is their application in structural components for the aircraft industry with low weight and high stiffness. These components are produced in near-final form but the so-called secondary processes such as machining are often unavoidable. In this type of industry, dri
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32

Gillespie, Joshua Robert. "Fabrication of Carbon/Silicon Carbide Laminate Composites by Laser Chemical Vapor Deposition and their Microstructural Characterization." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5119.

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Laser Chemical Vapor Deposition (LCVD) is a process by which reagent gases are thermally activated to react by means of a laser focused on a substrate. The reaction produces a ceramic or metallic deposit. This investigation focuses on the use of LCVD as a method for producing laminated composites, specifically carbon/silicon carbide laminates. The laminates that were produced were examined using scanning electron microscopy (SEM) and electron dispersive spectroscopy (EDS) to determine composition. Deposit geometrical characteristics such as laminate thickness and volcano depth as well as
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33

Sinclair, Gregory Maurice. "The response of singly curved fibre reinforced sandwich and laminate composite panels subjected to localised blast loads." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13328.

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Includes bibliographical references.<br>This report presents results from a study on the response of singly curved fibre reinforced polymer (FRP) sandwich and laminate panels subjected to localised blast loads. The aim of the project was to investigate and compare the blast mitigation potential of each panel type and the influence of curvature on the response. Three radii of curvature were examined for both panel types, namely infinite (flat), 1000mm and 500mm. The FRP laminate panels were designed to consist of 1-5 layers of Eglass fibre reinforced epoxy sheets. The FRP sandwich panels consis
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34

Israr, Ahmad Haris Ahmad Bin. "Etude expérimentale et numérique de l'écrasement de stratifiés composites à base de fibres de carbone." Thesis, Toulouse, ISAE, 2014. http://www.theses.fr/2014ESAE0009/document.

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L’un des défis de la simulation numérique de la résistance au crash des structures composites est de pouvoir prédire les endommagements, leur évolution au cours de l’écrasement et l'énergie absorbée, à partir d'un nombre limité de propriétés matériau. Le but de cette étude est d'améliorer la compréhension des mécanismes élémentaires impliqués dans l'écrasement de stratifiés de plis unidirectionnels à base de fibres de carbone et de développer un modèle numérique. Des essais sont réalisés à différentes échelles (macro, micro), et conduisent à la définition d'une nouvelle propriété matériau, ess
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Taetragool, Unchalisa. "Optimal Parameters for Doubly Curved Sandwich Shells, Composite Laminates, and Atmospheric Plasma Spray Process." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/81978.

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Optimization is a decision making process to solve problems in a number of fields including engineering mechanics. Bio-inspired optimization algorithms, including genetic algorithm (GA), have been studied for many years. There is a large literature on applying the GA to mechanics problems. However, disadvantages of the GA include the high computational cost and the inability to get the global optimal solution that can be found by using a honeybee-inspired optimization algorithm, called the New Nest-Site Selection (NeSS). We use the NeSS to find optimal parameters for three mechanics problem
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36

Schell, Julia Susanne Ursula. "Investigation of the influence of meso-scale flow effects in liquid composite moulding processes on the laminate quality /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17044.

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37

Caous, Damien. "Rôle de l'endommagement sur la durée de vie en fatigue des matériaux composites stratifiés : application au domaine éolien." Thesis, Paris, ENSAM, 2017. http://www.theses.fr/2017ENAM0022/document.

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L’objet de cette thèse est de proposer et d’identifier un modèle de comportement mécanique en fatigue écrit à l’échelle du pli ou de la couche composite élémentaire. Le modèle doit permettre de prédire l’évolution des dégradations mais également la résistance résiduelle. Les matériaux concernés par cette étude sont des composites renforcés par des tissus de fibres de verre bi ou tri axiaux. Ce travail exclue les zones de liaisons ou de reprise de pli où des contraintes hors plan engendrent des couplages forts entre endommagement intra et inter laminaires. Les principaux objectifs de la thèse s
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38

Zhou, Zhiqiang. "Multiple-Scale Numerical Analysis of Composites Based on Augmented Finite Element Method." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/75.

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Advanced composites are playing a rapidly increasing role in all fields of material and structural related engineering practices. Damage tolerance analysis must be a critical integral part of composite structural design. The predictive capabilities of existing models have met with limited success because they typically can not account for multiple damage evolution and their coupling. As a result, current composite design is heavily dependent upon lengthy and costly test programs and empirical design methods. There is an urgent need for efficient numerical tools that are capable of analyzing th
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Hu, Yile, and Yile Hu. "Peridynamic Modeling of Fiber-Reinforced Composites with Polymer and Ceramic Matrix." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/625367.

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This study focuses on developing novel modeling techniques for fiber-reinforced composites with polymer and ceramic matrix based on Peridynamic approach. To capture the anisotropic material behaviors of composites under quasi-static and dynamic loading conditions, a new peridynamic model for composite laminate and a modified peridynamic approach for non-uniform discretization are proposed in this study. In order to achieve the numerical implementation of the proposed model and approach, a mixed implicit-explicit solver based on GPU parallel computing is developed as well. The new peridynamic
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André, Natália Manente. "Friction spot joining of aluminum alloy 2024-t3 and carbon-fiber-reinforced polyphenylene sulfide composite laminate with additional pps film interlayer." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/8275.

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Submitted by Alison Vanceto (alison-vanceto@hotmail.com) on 2016-10-21T11:41:37Z No. of bitstreams: 1 DissNMA.pdf: 5169564 bytes, checksum: 024c06d911b0aca7d5ad498353cc25ef (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-11-08T18:38:42Z (GMT) No. of bitstreams: 1 DissNMA.pdf: 5169564 bytes, checksum: 024c06d911b0aca7d5ad498353cc25ef (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-11-08T18:38:48Z (GMT) No. of bitstreams: 1 DissNMA.pdf: 5169564 bytes, checksum: 024c06d911b0aca7d5ad498353cc25ef (MD5)<br>Made avail
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Chen, Cheng. "Contribution à la prise en compte des effets de l’environnement sur la tolérance aux dommages d'impact de stratifiés composites." Thesis, Toulouse, ISAE, 2015. http://www.theses.fr/2015ESAE0004/document.

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L'utilisation extensive des matériaux composites dans l'industrie aéronautique nécessite une compréhension étendue de leur comportement mécanique et mécanismes d'endommagement. La prise en compte des effets environnementaux, température et vieillissement humide, dans la prévision du comportement à l'impact, des endommagements et des mécanismes associés reste un sujet encore peu traité actuellement. Dans ce travail différentes conditions de vieillissement humide (dénommées ci-après état neuf, 65% VH, et 90%VH) ont été appliquées au matériau de l'étude. La caractérisation des propriétés du pli e
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42

Mohd, Zawawi Fazila. "Analyse aéroélastique d'une pale flexible composite : application au microdrone." Thesis, Toulouse, ISAE, 2014. http://www.theses.fr/2014ESAE0027/document.

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The vision driving the work reported herein is to investigate the fluid-structure interac-tion (FSI) effects of the flexible laminated blades for tilt-body micro-air-vehicles (MAV)proprotors in hover and forward flight configurations. This is in order to exploit the po-tential of flexible-bladed proprotor over the rigid-bladed proprotor in the enhancementof proprotor performance during hovering and cruising at a target forward speed. Forthat, the FSI model taking into account the specific problems devoted to MAV-sizedproprotor made of laminate composite was developed. The FSI model combines ae
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Santos, Matheus Vilar Mota. "Analysis of delamination of composite laminates through the XFEM based on the Layerwise displacement theory." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18148/tde-03102018-122551/.

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Composite laminates are being more employed as fundamental structures due to its low weight and high stiffness. An example of this innovation is the primary structures of modern aircraft, which are lighter than the material formerly used. To predict the material response as load gradually increases can be quite demanding due to composite\'s complex failure mechanism. Hence superior computational models should be further investigated to precisely predict the mechanical behavior of composite media. This dissertation addresses an extended finite element procedure based on the layerwise displacem
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Shieh, Chyuan Jau, and 謝全釗. "The Contact Behavior of Composite Laminate." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/09506330278226725943.

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碩士<br>國立清華大學<br>動力機械學系<br>82<br>A hybrid stress multilayer element model together with the contact mechanics analysis procedure are developed to study the three dimensional frictionless contact problem between a general composite laminate and a rigid sphere. The multilayer element model is formulated based on a modefied complementary energy priciple. To relax the equilibrium of interelement tractions, in addition to the stress field in the interior of the element, the Lagrangian multipliers
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WANG, XIANG-NIAN, and 王湘年. "Discussion on design factors of composite laminate." Thesis, 1986. http://ndltd.ncl.edu.tw/handle/14983910841821537587.

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Chung, En-Shung, and 張恩生. "Reliability Analysis of Laminate Composite Plate Structures." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/07423736627187262327.

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碩士<br>國立交通大學<br>機械工程研究所<br>85<br>Methods formulated on the basis of the concept of first-ply failure and the structural reliability theory are presented for the reliability analysis of laminated composite plates. The first-ply failure analysis of the laminated plates is achieved via the use of different phenomenological failure criterion and the finite element method. In the reliability formulation, an appropriate phenomenological failure criterion is used to extablish the limit state equation of the laminated composite plates and different numerical techniques are employed to evaluate the r
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Olusanya, John Olumide. "Fatigue performance of nanoclay filled glass fiber reinforced hybrid composite laminate." Thesis, 2017. http://hdl.handle.net/10321/2464.

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Submitted in fulfilment of the requirements for the degree of Master of Engineering: Mechanical Engineering, Department of Mechanical Engineering, Faculty of Engineering and the Built Environment, Durban University of Technology, Durban, South Africa. 2017.<br>In this study, the fatigue life of fiber reinforced composite (FRC) materials system was investigated. A nano-filler was used to increase the service life of the composite structures under cyclical loading since such structures require improved structural integrity and longer service life. Behaviour of glass fiber reinforced composite (G
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Do, Re-Long, and 杜瑞隆. "The Cylindrical Indentation Bechaviors of Thick Composite Laminate." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/52250248017734998566.

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碩士<br>逢甲大學<br>土木及水利工程研究所<br>86<br>Composite materials have been used in aerospace industry, automobile industry, and construction industry due to their high strength-to-weight ratio and easy for tailoring. In general, the in-plane strengths in composites can content with the design requirement. But, the out-of -plane strengths in composites are lower than the in-plane strengths. Thus when out-of-plane stresses exist, the composite structure is prone to damage or delaminate. The damages in
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Yu, Ding-I., and 余定一. "3D Stress Analysis of Composite Laminate with Holes." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/99195702566354573405.

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Chuang, Jing-Wei, and 莊金維. "Thermal Post-buckling Analysis of Composite Laminate Plates." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/82134719921423370983.

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碩士<br>國立成功大學<br>航空太空工程學系碩博士班<br>91<br>Base on Von-Karman large deformation assumption and a simplified high order shear deformation plate theory, a 72 degree-of-freedom high precision high order triangular plate element is developed for the thermal post-buckling analysis of composite laminate plates subjected to temperature changes. The total transverse displacement of the laminate plate is expressed as the sum of the displacement due to bending and that due to shear deformation. When temperature reaches critical buckling temperature, the laminate plate goes into post-buckling region. The non
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