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Dissertations / Theses on the topic 'Metals Fatigue'

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Published: 4 June 2021

Last updated: 26 July 2024

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1

Nowicki, Timothy. "Statistical model prediction of fatigue life for diffusion bonded Inconel 600 /." Online version of thesis, 2008. http://hdl.handle.net/1850/7984.

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2

Fernandes, Paulo Jorge Luso. "Fatigue and fracture of metals in liquid-metal environments." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337963.

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3

Lunt, William S. "Molecular dynamics simulation of fatigue damage in metals." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FLunt.pdf.

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4

Erasmus, Daniel Jacobus. "The fatigue life cycle prediction of a light aircraft undercarriage." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1527.

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The reliability of systems relies heavily on accurate fatigue life prediction of related components. Fatigue life prediction is a complicated process requiring the correct methodology to determine accurate and reliable predictions. The Palmgren – Miner damage accumulation hypothesis is widely used in determining the fatigue life of components exposed to variable loading conditions. Modifications have been made to this hypothesis trying to achieve a greater degree of accuracy, of these the Liu – Zenner modification has been the most successful. In this report the systematic process of fatigue l

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5

Williams, Zachary. "Krouse Fatigue for Metals with Elevated Mean Stress." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1597075964521893.

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6

Repetto, Eduardo A. Ortiz Michael. "On the fatigue behavior of ductile F.C.C. metals /." Diss., Pasadena, Calif. : California Institute of Technology, 1998. http://resolver.caltech.edu/CaltechETD:etd-01242008-133649.

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7

Zhao, Tianwen. "Fatigue of aluminum alloy 7075-T651 /." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3342620.

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Thesis (Ph. D.)--University of Nevada, Reno, 2008.<br>"December, 2008." Includes bibliographical references (leaves 76-83). Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2009]. 1 microfilm reel ; 35 mm. Online version available on the World Wide Web.

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8

Morrissey, Ryan J. "Frequency and mean stress effects in high cycle fatigue of Ti-6A1-4V." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/17095.

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9

Jin, Ohchang. "The characterization of small fatigue crack growth in PH13-8 Mo stainless steel." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/19633.

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10

Ghodratighalati, Mohamad. "Multiscale Modeling of Fatigue and Fracture in Polycrystalline Metals, 3D Printed Metals, and Bio-inspired Materials." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/104944.

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The goal of this research is developing a computational framework to study mechanical fatigue and fracture at different length scales for a broad range of materials. The developed multiscale framework is utilized to study the details of fracture and fatigue for the rolling contact in rails, additively manufactured alloys, and bio-inspired hierarchical materials. Rolling contact fatigue (RCF) is a major source of failure and a dominant cause of maintenance and replacements in many railways around the world. The highly-localized stress in a relatively small contact area at the wheel-rail interfa

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11

Glass, Bradley Smyth. "Continuum mechanics approaches to the study of fracture and fatigue in metals." Faculty of Engineering, 2004. http://ro.uow.edu.au/theses/264.

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This thesis investigates continuum mechanics based means of metal failure assessment. A basic science approach was employed throughout the study to examine the fundamental relationships responsible for metal failure. The extension of previously existing continuum mechanics based theories to encompass a wider range of application was considered in this thesis. Research was conducted as two separate studies which examine specific aspects of the metal failure spectrum, namely failure due to monotonic loading, and fatigue failure due to cyclic loading. The failure due to monotonic loading research

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12

Hansen, Robert C. "Thermal and mechanical fatigue of 6061 Al - P100 Gr metal matrix composite." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA238795.

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Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, September 1990.<br>Thesis Advisor(s): Dutta, Indranath ; Mitra, Shantanu. "September 1990." Description based on title screen as viewed on December 21, 2009. DTIC Identifier(s): Fatigue (mechanics), thermal fatigue, metal matrix composites, laminates, bending, ultimate strength, fiber reinforced composites, theses. Author(s) subject terms: Aluminum-graphite composite, bend fatigue, thermal fatigue. Includes bibliographical references (p. 64-65). Also available in print.

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13

Ralph, William Carter. "Assessment of hole drilling procedures on resulting fatigue lives." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04072004-180146/unrestricted/ralph%5Fwilliam%5Fc%5F200312%5Fms.pdf.

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14

Heffern, Thomas V. "Probabilistic modeling and simulation of metal fatigue life prediction." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FHeffern.pdf.

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Thesis (M.S. in Aeronautical Engineering)--Naval Postgraduate School, September 2002.<br>Thesis advisor(s): Ramesh Kolar, E. Roberts Wood. Includes bibliographical references (p. 113). Also available online.

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15

Fan, Zhengxuan. "Atomistic simulation of fatigue in face centred cubic metals." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX076/document.

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La fatigue induite par chargement cyclique est un mode d'endommagement majeur des métaux. Elle se caractérise par des effets environnementaux et de grandes dispersions de la durée de vie qui doivent être mieux comprises. Les matériaux analysés sont de type cfc : aluminium, cuivre, nickel et argent. Le comportement de marches naturellement créées en surface par le glissement cyclique de dislocations est examiné par simulations en dynamique moléculaire sous vide et sous environnement oxygène pour le cuivre et le nickel. Un phénomène de reconstruction est observé sur les marches en surface, qui p

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16

Yoon, Kee Bong. "Characterization of creep fatigue crack growth behavior using C[superscript](t[superscript]) parameter." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/17523.

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17

Kirmani, Ghulam Ashraf-Ul-Harmain. "Single overload fatigue crack growth retardation : an implementation of plasticity induced closure." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ32752.pdf.

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18

Bian, Lichun, and 卞立春. "Fatigue crack growth analysis of metallic plates with an inclinedsemi-elliptical crack." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242844.

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19

Cretegny, Laurent. "Use of atomic force microscopy for characterizing damage evolution during fatigue." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/20141.

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20

Dallmeier, Johannes. "Experimental analysis and numerical fatigue modeling for magnesium sheet metals." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2016. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-209124.

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The desire for energy and resource savings brings magnesium alloys as lightweight materials with high specific strength more and more into the focus. Most structural components are subjected to cyclic loading. In the course of computer aided product development, a numerical prediction of the fatigue life under these conditions must be provided. For this reason, the mechanical properties of the considered material must be examined in detail. Wrought magnesium semifinished products, e.g. magnesium sheet metals, typically reveal strong basal textures and thus, the mechanical behavior considerably

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21

Kucz, Daniel Allen. "Analysis of distortion-induced fatigue cracking in a steel trapezoidal box girder bridge." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 177 p, 2009. http://proquest.umi.com/pqdweb?did=1885755701&sid=9&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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22

KJERENGTROEN, LIDVIN. "RELIABILITY ANALYSIS OF SERIES STRUCTURAL SYSTEMS (PROBABILITY, DESIGN, FATIGUE)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/187909.

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Reliability analysis of series structural systems with emphasis on problems typical for metal fatigue is addressed. Specific goals include the following: (1) Given the distribution of strength of the components and the distribution of external loads on the system what is the probability of failure of the system? (2) Given the target safety index for the system, what would be the target safety index for the components? Exact solutions in the analysis of series structural systems only exists for some special problems. Some of these special problems are investigated. In particular some special c

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23

Peters, Donald Michael Dirk. "The effects of shot peening on low cycle fatigue life of 7075-T6 aluminium alloy round bar." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/2929.

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The aim in this dissertation was to improve our understanding of the effectiveness of shot peening in prolonging fatigue life, of 7075-T6 Aluminium Alloy round bar, taking into consideration surface residual stress, microstructural and micro-hardness parameters. Three point bending, high stress, moderately low cycle, fatigue tests were conducted to study the effects of shot peening and associated surface residual compressive stresses on fatigue life. The influence of shot peening on the microstructure was explored, including the application of mechanical small plastic straining and surface ski

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24

Pape, John Andrew. "Design and implementation of an apparatus to investigate the fretting fatigue of PH 13-8 Mo stainless steel." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/18394.

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25

Dunn, DeRome Osmond. "Modeling cycle and time dependent creep/relaxation effects on fatigue lives of notched members." Diss., Virginia Polytechnic Institute and State University, 1991. http://hdl.handle.net/10919/54823.

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Mechanical cyclic variations in mean stress and strain amplitude is a well-known occurrence for metals even at room temperature. Many fatigue analysis procedures ignore these variations. Fatigue analysis which included both time and cycle dependent mechanical material behavior for metals at room temperature had not been previously studied except for the case of creep. An investigation studying transient mechanical effects on Ti-6Al-4V titanium and 7475-T651 Al alloys was done to determine how great an effect transients at room temperature would have on fatigue life under cyclic conditions. The

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26

Bennett, Valerie P. "A microscale study of small crack propagation in multiaxial fatigue." Diss., Atlanta, Ga. : Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/23957.

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27

Wannenburg, Johann. "A study of fatigue loading on automotive and transport structures." Thesis, University of Pretoria, 2007. http://upetd.up.ac.za/thesis/available/etd-04032008-100638/.

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28

Li, Zongbao. "Crack detection in annular components by ultrasonic guided waves." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/15920.

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29

Kienle, Ulrich F. B. "A laboratory simulation of adhesive wear of high speed reciprocating components in water powered mining equipment." Master's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/22575.

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Bibliography: pages 117-120.<br>A high-speed reciprocating sliding wear test rig was used to examine the metal on metal surface interactions of materials under consideration for application in water powered stoping equipment. The suitability of this test rig was investigated by implementing a test programme covering self-mated stainless steel and stainless steel-on-bronze couples. These couples were examined under water lubricated conditions in a broad test matrix, covering sinusoidal peak velocities of 1, 5 and 10 m/s; loads of 5, 10 and 20N and surface roughness values ranging from 0.2 to 0.

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30

Queiroz, Syme Regina Souza. "Propriedades mecânicas e micromecanismos de fratura de corpos-de-prova usinados de rodas ferroviárias fundidas e forjadas." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265223.

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Orientador: Itamar Ferreira<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-20T17:14:11Z (GMT). No. of bitstreams: 1 Queiroz_SymeReginaSouza_D.pdf: 5101982 bytes, checksum: 1143c4b43c52ed713ed719367ce07ead (MD5) Previous issue date: 2012<br>Resumo: A tendência mundial das estradas de ferro é utilizar carga elevada por vagão no transporte de produtos e alta velocidade no setor de passageiros. Em ambas as situações, as rodas ferroviárias são muito solicitadas mecanicamente e, em função disso, as propriedades mecân

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31

Bansal, Shubhra. "Characterization of Nanostructured Metals and Metal Nanowires for Ultra-High Density Chip-to-Package Interconnections." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14041.

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Nanocrystalline materials are being explored as potential off-chip interconnects materials for next generation microelectronics packaging. Mechanical behavior and deformation mechanisms in nanocrystalline copper and nickel have been explored. Nanostructured copper interconnections exhibit better fatigue life as compared to microcrystalline copper interconnects at a pitch of 100 and #956;m and lower. Nanocrystalline copper is quite stable upto 100 oC whereas nickel is stable even up to 400 oC. Grain boundary (GB) diffusion along with grain rotation and coalescence has been identified as the gr

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32

Grover, Parmeet Singh. "An accelerated test procedure for creep-fatigue crack growth testing." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/20188.

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33

Cook, Daniel Adam. "Monitoring small fatigue cracks using ultrasonic surface waves." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/17381.

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34

Peiffer, John P. "Fatigue testing of stiffened traffic signal structures." Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1888253611&sid=11&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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35

Stobbe, David M. "Acoustoelasticity in 7075-T651 aluminum and dependence of third order elastic constants on fatigue damage." Thesis, Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-07172005-140635/.

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36

Bartlett, Martin L. "The use of a laser extensometer to study the behavior of small fatigue cracks." Thesis, Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/11879.

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37

Aguado, Clodoaldo Garcia. "Estudo da análise de fadiga pelo MEF considerando os efeitos da estampagem." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263060.

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Orientador: Alfredo Rocha de Faria<br>Dissertação (mestrado profissional) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-18T21:18:25Z (GMT). No. of bitstreams: 1 Aguado_ClodoaldoGarcia_M.pdf: 53529976 bytes, checksum: c01081cee3de72ee7fd5c2ac1f9d0612 (MD5) Previous issue date: 2011<br>Resumo: As simulações dentro do ambiente de projeto devem prever a utilização de novas variáveis, especialmente de processos, de forma a aumentar a proximidade entre os modelos virtual e real e, com isso, aumentar a precisão das simulações. O objetiv

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38

Langøy, Morten A. "Fatigue crack growth of Ti-6A1-4V-01Ru (ELI GRADE) in ocean environments." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/19642.

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39

Nelaturu, Phalgun. "Fatigue Behavior of A356 Aluminum Alloy." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849720/.

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Metal fatigue is a recurring problem for metallurgists and materials engineers, especially in structural applications. It has been responsible for many disastrous accidents and tragedies in history. Understanding the micro-mechanisms during cyclic deformation and combating fatigue failure has remained a grand challenge. Environmental effects, like temperature or a corrosive medium, further worsen and complicate the problem. Ultimate design against fatigue must come from a materials perspective with a fundamental understanding of the interaction of microstructural features with dislocations, un

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40

Ketabchi, Amirhossein. "Influence of Nanoscale Surface Modifications on the Fatigue Resistance of Medically Relevant Metals." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24116.

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With an increasingly aging population, a significant challenge in implantology is the creation of biomaterials that actively promote and accelerate tissue integration while offering excellent mechanical properties. Engineered surfaces with superimposed micro and nanoscale topographies showed great potential to control and direct biomaterial-host tissue interactions. However, these modified surfaces require a careful assessment to prevent potential adverse effects on the fatigue resistance, a factor which may ultimately cause premature failure of biomedical implants. In this context, the surfa

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41

Müller, Ruan. "Characterising the stress-life response of mechanical formed AISI-1008 steel plate components." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1008102.

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The main purpose of this research project was to determine the fatigue-life behaviour of AISI 1008 sheet steel which has been mechanically formed to a radius of curvature of 120mm and then to correlate the fatigue-life behaviour to that of the parent or “as manufactured” material. During the forming process it was felt important to induce plastic strain through stretch-bending by clamping the sides of a plate sample’s (width) edges in the bending fixture before being bent by a single acting mechanical press. It was determined through actual testing that there was a decrease in fatigue-life whe

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42

Walker, Simon Valentin. "Characterization of fatigue damage in A36 steel specimens using nonlinear Rayleigh surface waves." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42753.

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A36 steel is a commonly used material in civil engineering structures where fatigue damage can lead to catastrophic failure. In this research, nonlinear Rayleigh surface waves are used to characterize damage in A36 steel specimens caused by monotonic tension and low cycle fatigue. Fatigue damage produces the increased acoustic nonlinearity that leads to the generation of measurable higher harmonics in an initially monochromatic Rayleigh wave signal. One specimen is subjected to static tension and four specimens are used for low cycle fatigue tests in the tension-tension mode with a constant st

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43

Ilic, Slobodan Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Methodology of evaluation of in-service loads applied to the output shafts of automatic transmissions." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2006. http://handle.unsw.edu.au/1959.4/30172.

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This work presents a novel methodology for evaluation of in service loads applied to the output shafts of automatic transmissions. It also presents a novel methodology of data reduction for shaft load signals as an alternative to the cycle counting methods. Current durability testing of automatic transmission output shafts uses 50 000 stall torque cycles from zero to wide open throttle. In the majority of cases, these requirements lead to an over design that can result in an unnecessarily bulky transmission system. As a solution to this problem a novel methodology for evaluation of loads appl

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44

Funk, Matthias Friedrich [Verfasser]. "Microstructural stability of nanostructured fcc metals during cyclic deformation and fatigue / Matthias Friedrich Funk." Karlsruhe : KIT Scientific Publishing, 2012. http://d-nb.info/1185580980/34.

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45

Estes, Matthew J. "Corrosion of composite tube air-ports in kraft recovery boiler: Cr₂O₃, Fe₂O₃, NiO solubility in molten hydroxide." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/7027.

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46

Seyed, Hossein Hesamedin Sadeghi. "Study of electromagnetic field distributions around cracks in metals, induced by u-shaped current-carrying wires." Thesis, University of Essex, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280900.

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47

February, Eugene J. "Analysis of fatigue crack properties of the weld metal of gas metal Arc welded 300WA steel." Thesis, Cape Peninsula University of Technology, 2006. http://hdl.handle.net/20.500.11838/1278.

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Thesis (MTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2006.<br>Welded joints are major causes for concern in the engineering arena for two basic reasons. In the first instance the weld is known to be a region of weakness within a structure and is caused by residual and applied stress concentrations. Secondly, the behaviour of the stress patterns is somewhat difficult to predict accurately due to the difficulty of conforming to the geometry and process parameters. The experimental procedure in this work commenced with specimens being welded with a technique ve

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48

Calderon, Jose Guadalupe. "Comparison of 43Sn/43Pb/14Bi Solder and Standard 60Sn/40Pb Solder by Thermocyclic Fatigue Analysis." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc501128/.

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The thermocyclic fatigue behavior of the low-melting solder 43Sn/43Pb/14Bi has been investigated and compared to that of standard 60Sn/4OPb solder via metallographic analysis (using scanning electron microscopy) and evaluation of the degree of fatigue development (using a fatigue scale as a function of thermocycles). Specimens were subjected to shearing strains imposed by several hundred fatigue thermocycles. Both solder types fatigue by the same microstructural failure mechanism as described by other workers. The mechanism is characterized by a preferential coarsening of the solder joint micr

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49

Findley, Kip Owen. "Physically-based models for elevated temperature low cycle fatigue crack initiation and growth in Rene." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-04292005-092902/.

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Thesis (Ph. D.)--Materials Science and Engineering, Georgia Institute of Technology, 2006.<br>McDowell, David, Committee Member ; Gokhale, Arun, Committee Member ; Saxena, Ashok, Committee Chair ; Johnson, Steven, Committee Member ; Sanders, Thomas, Committee Member.

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50

Solanki, Kiran N. "TWO AND THREE-DIMENSIONAL FINITE ELEMENT ANALYSIS OF PLASTICITY-INDUCED FATIGUE CRACK CLOSURE ? A COMPREHENSIVE PARAMETRIC STUDY." MSSTATE, 2002. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11102002-143748/.

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Finite element analyses are frequently used to model growing fatigue cracks and the associated plasticity-induced crack closure. Two-dimensional, elastic-perfectly plastic finite element analyses of middle-crack tension (M(T)), bend (SEB), and compact tension (C(T)) geometries were conducted to study fatigue crack closure and to calculate the crack opening values under plane-strain and plane-stress conditions. The loading was selected to give the same maximum stress intensity factor in both geometries, and thus similar initial forward plastic zone sizes. Mesh refinement studies were performed

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