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Dissertations / Theses on the topic 'Bimaterial'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Thrusabanjong, Ekachai. "Fracture at bimaterial interfaces." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/46771.

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2

Mohammed, Ilyas. "Crack nucleation from bimaterial corners /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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3

Lambros, John Rosakis Ares J. "Dynamic decohesion of bimaterial interfaces /." Diss., Pasadena, Calif. : California Institute of Technology, 1994. http://resolver.caltech.edu/CaltechETD:etd-12042007-075432.

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4

Angelides, Michael. "Stress compatible finite elements for bimaterial interface problems." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63808.

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5

Shen, Sheng Ph D. Massachusetts Institute of Technology. "Probing extraordinary nanoscale energy transfer using bimaterial microcantilevers." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62515.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Nanostructured materials have recently drawn a great deal of attention in the field of energy research such as for solar photovoltaic, thermophotovoltaic and thermoelectric applications. The energy transport properties of nanostructures can differ greatly from their bulk counterparts because the characteristic dimensions of nanostructures are often comparable with the wavelength or the mean free path of energy carrier

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6

Romeo, Alberto. "On a crack tip interacting with a bimaterial interface." Case Western Reserve University School of Graduate Studies / OhioLINK, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=case1062699982.

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7

Ekman, Matthew J. "Automated photoelastic determination of fracture parameters for bimaterial interface cracks." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/10421.

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This thesis details an experimental study on the determination of the fracture parameters for a crack located at the interface between two dissimilar materials using the method of photoelasticity. The interface is potential1y an inherent weak spot of any composite material, structure"or adhesively bonded joint. Accurate description of the state of stress at the crack tip is required for strength prediction. The concept of the complex stress intensity factor is used to characterise the elastic crack tip stress field for an interface crack. Complex stress intensity factors and their moduli have

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8

Daily, Jeremy S. "Dissipated Energy at a Bimaterial Crack Tip Under Cyclic Loading." Wright State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=wright1150865012.

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9

Tan, Mingan. "On the singular stress field at the interface of bimaterial systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41516.pdf.

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10

Fey, Kate Elizabeth Rosakis Ares J. Rosakis Ares J. "Experimental and theoretical aspects of dynamic crack growth along bimaterial interfaces /." Diss., Pasadena, Calif. : California Institute of Technology, 1996. http://resolver.caltech.edu/CaltechETD:etd-12132007-082556.

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11

Wood, Judy D. "Determination of thermal strains in the neighborhood of a bimaterial interface." Diss., Virginia Tech, 1992. http://hdl.handle.net/10919/38531.

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12

Yi, Jun 1959. "Stress compatible bimaterial interface elements with application to transient dynamic stress analysis." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22842.

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Conventional displacement-based finite element programs do not yield unique values of stress components which ought to be continuous at element interfaces. The errors, being the differences from the correct unique values, become unacceptably large at a bimaterial interface when the moduli of the two materials are significantly different.<br>This thesis formulates and implements new finite elements for obtaining the correct values of the stress components, both continuous and discontinuous ones, at bimaterial interface points under general dynamic loading, assuming linear, isotropic, elastic ma

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13

Finlayson, Eric F. "Stress Intensity Factor Distributions in Bimaterial Systems - A Three Dimensional Photoelastic Investigation." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36504.

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Stress-freezing photoelastic experiments are conducted using two different sets of photoelastic materials to investigate stress intensity behavior near to and coincident with bimaterial interfaces. Homogeneous, bonded homogeneous, and bonded bimaterial single edge-cracked tension specimens are utilized throughout the investigation for comparative purposes. The first series of tests involves machined cracks obliquely inclined to the direction of far field tensile loading. Mixed-mode stress intensity factors are observed and quantified using a simplified analytical algorithm which makes use o

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14

Baughman, David C. "Creation and Optimization of Novel Solar Cell Power via Bimaterial Piezoelectric MEMS Device." Thesis, Monterey, California. Naval Postgraduate School, 2012.

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Approved for public release; distribution unlimited.<br>Current solar cell technology suffers low efficiencies in the commercial sector and cost prohibitive technology at higher efficiencies. This thesis investigates the possibility of a novel, alternate, avenue for the creation of solar power, which has the potential to be both cost effective and highly efficient. The approach converts solar energy into electrical energy via a MEMS device that utilizes spectrum-insensitive thermal absorption combined with power generation via the piezoelectric effect. The thesis investigates the underlying ph

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15

Li, Renfu. "A Study of Interface Crack Branching in Dissimilar Anisotropic Bimaterial Composites Including Thermal." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4893.

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The interface crack branching phenomena, including thermal effects, has been investigated by using complex variable method and Stroh's dislocation theory, extended to thermo-elasticity in matrix notation. As one of the most catastrophic failure modes in structures like laminated and sandwich composites in aerospace and marine construction, thin film in electronic packaging, rotators in high speed engine of aircraft and reactor in nuclear power station, the study of interface crack branching has become a topic not only having theoretical importance, but also having practical

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16

Daily, Jeremy S. "Plastic Dissipation Energy in Mixed-Mode Fatigue Crack Growth on Ductile Bimaterial Interfaces." Wright State University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=wright1074880923.

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17

Mokashi, Prasad Shrikant. "Numerical modeling of homogeneous and bimaterial crack tip and interfacial cohesive zones with various traction-displacement laws." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1180621217.

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18

Martínez, Sanz Antonio Vicente. "Modelado y verificación experimental del comportamiento a traccion de probetas bimaterial termoplasticas. (PP-PE y ABS-HIPS)." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/61970.

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[EN] The injection process is a very important part of the manufacture of thermoplastics. They are used for the fabrication of a wide variety of products because they comply perfectly with the overall objectives of low cost, precise size and almost the complete elimination of defects in the finished product. Many publications and scientific studies have been completed about the determination and control of the set of variables that affect the above-mentionned technological process. There are more and more applications for thermoplastics in a variety of areas such as the automotive and sports s

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19

Baudendistel, Craig M. "Effect of a Graded Layer on the Plastic Dissipation During Mixed-Mode Fatigue Crack Growth on Ductile Bimaterial Interfaces." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1368797452.

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20

Kumar, Abhishek. "RKEM implementation for strain gradient theory in multiple dimensions." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002163.

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21

Ševeček, Oldřich. "Řešení obecných koncentrátorů napětí v anisotropních prostředích pomocí kombinace MKP a teorie komplexních potenciálů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-233849.

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Disertační práce se věnuje problematice obecných koncentrátorů napětí v anisotropních prostředích. Zejména se jedná o problém trhlin končících na rozhraní dvou různých materiálů, či problém obecného více-materiálového klínu. Cílem práce je vytvořit komplexní nástroj pro posuzování obecných koncetrátorů napětí tj, popis pole napětí v jeho okolí, zahrnutí případného vlivu přemostění trhliny do výsledného pole napětí a definici lomových kritérií pro obecný koncentrátor v anisotropním prostředí. U popisu pole napětí je využit tzv. Lechnického-Strohův formalismus a technika spojitě rozložených disl

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22

Ševeček, Oldřich. "Solution of General Stress Concentrators in Anisotropic Media by Combination of FEM and the Complex Potential Theory." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-233837.

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Disertační práce se věnuje problematice obecných koncentrátorů napětí v anisotropních prostředích. Zejména se jedná o problém trhlin končících na rozhraní dvou různých materiálů, či problém obecného více-materiálového klínu. Cílem práce je vytvořit komplexní nástroj pro posuzování obecných koncetrátorů napětí tj, popis pole napětí v jeho okolí, zahrnutí případného vlivu přemostění trhliny do výsledného pole napětí a definici lomových kritérií pro obecný koncentrátor v anisotropním prostředí. U popisu pole napětí je využit tzv. Lechnického-Strohův formalismus a technika spojitě rozložených disl

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23

Krepl, Ondřej. "Napjatost v okolí velmi ostrých bimateriálových vrubů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230865.

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Presented diploma thesis is concerned with problems of a stress singularity exponent and a generalized stress intensity factor determination, by dint the stress field in the vicinity of the stress concentrator can be consecutively determined. This task is possible to sectionalize into three parts. The first part summarizes basic information about linear anisotropic materials, deals with fundamentals of the linear elastic fracture mechanics and introduces its generalization to the case of the generalized stress intensity factors. The second part is dedicated to a special theory of anisotropic e

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24

Zhao, Peng. "Seismic velocity contrasts and temporal changes of strike-slip faults in central California." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37242.

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The spatial patterns of bimaterial interfaces along the Parkfield section of the San Andreas Fault (SAF) and central section of the Calaveras Fault are systematically investigated with large data sets of near-fault waveforms. Different from the usage of direct P and S waves in traditional tomographic studies, a particular seismic phase named fault zone head wave (FZHW) is used to image the bimaterial fault interfaces. The results show clear variations of seismic velocities contrast both along-strike and along-depth directions in both regions, which is in general consistent with local geologica

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25

Xue, Yibin. "Three dimensional interface cracks in anisotropic bimaterials." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/17273.

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26

Kubíček, Radek. "Problematika komplexních potenciálů v izotropní rovinné pružnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382561.

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The presented diploma thesis concerns linear fracture mechanics and deals with determination of the stress intensity factor of the finite crack, which is located in the vicinity of the bimaterial interface, solved by the distributed dislocation technique and theory of complex potencials. The work is possible to devide into three parts. The first part includes basic concepts of the linear fracture mechanics and is also dedicated to the mechanics of composite materials. The second part deals with the determination of the stress intensity factor from solving singular integral equation formulated

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27

Eftaxiopoulos, Dimitrious A. "Crack tip stress analysis in anisotropic elastic and viscoelastic bimaterials." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46759.

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28

Li, Yongqiang. "Experimental Studies on the Mechanical Durability of Proton Exchange Membranes." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/29944.

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Three testing methods are proposed to characterize properties of fuel cell materials that affect the mechanical durability of proton exchange membranes (PEMs). The first two methods involved measuring the in-plane biaxial strength of PEMs and the biaxial hygrothermal stresses that occur in PEMs during hygrothermal cycles. The third method investigated the nonuniform thickness and compressibility of gas diffusion media which can lead to concentrated compressive stresses in the PEM in the through-plane direction. Fatigue and creep to leak tests using multi-cell pressure-loaded blister fixtur

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29

Cruz, Ricardo Bonfim. "Fratura na interface de bimateriais : soluções analíticas e numéricas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/27940.

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Neste trabalho, é estudada a fratura na interface de materiais dissimilares empregando duas metodologias distintas: a Mecânica da Fratura Linear Elástica (MFLE) e os métodos coesivos. O uso da MFLE aplicada a trincas situadas na interface de materiais dissimilares apresenta algumas dificuldades bem conhecidas que podem inviabilizar seu uso, como a presença de zonas de contato na frente da trinca que ocorrem em certas combinações de carregamento misto. Outra dificuldade é a inexistência de um modo I puro na ponta da trinca, o que dificulta estabelecer uma propriedade de fratura única para a int

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30

Pryce, Lewis. "Weight function approach to studying perfect and imperfect interfaces in anisotropic and piezoelectric bimaterials." Thesis, Aberystwyth University, 2015. http://hdl.handle.net/2160/731bf923-5410-40c5-89a7-1fd4070db736.

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The focus of the thesis is interfacial crack problems in anisotropic and piezoelectric bimaterials. We seek to solve a variety of problems using weight function techniques and singular integral equations. We begin by studying a dynamic crack along a perfectly bonded interface in an anisotropic bimaterial. Using a weight function de- rived from a mirrored problem it is possible to derive important ma- terial parameters which govern the crack propagation. Following this a static crack is considered. However, in this case the materials are not bonded perfectly, an imperfect interface is present i

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31

Aciari, Juliana Raquel Frigo. "Preparação de micropartículas de fibroína da seda calcificadas." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/82/82131/tde-28112013-091351/.

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A calcificação ocorre pela formação de depósitos de cálcio em diferentes matrizes envolvendo fatores mecânicos, químicos e biológicos. Alguns compósitos, polímeros e proteínas são utilizados na formação de matrizes por promover maior eficiência no processo de mineralização. Estima-se que a fibroína da seda apresente também esta finalidade. A fibroína é uma proteína fibrosa extraída do casulo do bicho-da-seda (Bombyx mori), que pode ser processada como filme, membrana, esponja, pó, gel e aplicada em ossos e cartilagens, enxertos vasculares, reparação de nervos e córnea, como sistema de liberaçã

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32

Hrstka, Miroslav. "Popis rozložení napětí v okolí bimateriálového vrubu pomocí zobecněného faktoru intenzity napětí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230355.

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The presented diploma thesis deals with a problem of a generalized stress intensity factor determination and a consecutive study of stress distribution around the bimaterial notch tip, combining analytical and numerical methods. This task is possible to sectionalize into three parts. The first part is dedicated to the fundamentals of the linear fracture mechanics and the mechanics of composite materials. The second part deals with methods of anisotropic plane elasticity solution. Pursuant to the solution the computational models in the third part are created. The first model makes for determin

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33

Paiva, Seila Vasti Faria de. "Analise de trincas interfaciais em bimateriais anisotropicos usando o metodo dos elementos de contorno." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265090.

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Orientador: Paulo Sollero<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-10T03:16:07Z (GMT). No. of bitstreams: 1 Paiva_SeilaVastiFariade_M.pdf: 1387945 bytes, checksum: 04ad3c76f01698f24ef5fd7ebfb49264 (MD5) Previous issue date: 2006<br>Resumo: Nesta dissertação é apresentada uma análise de problemas da mecânica da fratura elástica linear em estruturas bimateriais anisotrópicas. Utilizando o método dos elementos de contorno é possível calcular os fatores de intensidade de tensão em problemas planos (2D)

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34

Wood, Joseph D. "Brittle mixed-mode cracks between linear elastic layers." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/24177.

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Original analytical theories are developed for partitioning mixed-mode fractures on rigid interfaces in laminated orthotropic double cantilever beams (DCBs) based on 2D elasticity by using some novel methods. Note that although the DCB represents a simplified case, it provides a deep understanding and predictive capability for real applications and does not restrict the analysis to a simple class of fracture problems. The developed theories are generally applicable to so-called 1D fracture consisting of opening (mode I) and shearing (mode II) action only with no tearing (mode III) action, for

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35

Lambros, John. "Dynamic decohesion of bimaterial interfaces." Thesis, 1994. https://thesis.library.caltech.edu/4779/1/Lambros_j_1994.pdf.

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NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. In the present work, findings of an experimental study of dynamic decohesion of bimaterial systems composed of constituents with a large material property mismatch are presented. PMMA/steel or PMMA/aluminum bimaterial fracture specimens are used. Dynamic one point bend loading is accomplished with a drop weight tower device (for low and intermediate loading rates) or a high speed gas gun (for high loading rates). High speed interferometric measurements are made using the lateral

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36

Jen-Chang, Lin. "Investigation of Thermal Stresses of Bimaterial Structures." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709301009.

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37

Lin, Jen-Chang, and 林礽昌. "Investigation of Thermal Stresses of Bimaterial Structures." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/17531205496423988234.

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博士<br>國立清華大學<br>動力機械工程學系<br>94<br>ABSTRACT This dissertation focused on conducting two types of photoelastic experiments, the transmitted-light photoelastic method and the scattered-light photoelastic method, and then validating the experimental results through a finite element package ANSYS to investigate the thermal stress distribution of bimaterial structures under thermal loading. Initially, the transmitted-light photoelastic method was applied to examine the thermal stress distribution of bimaterial structures. In addition, the scattered-light photoelastic method was first employed to

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38

Bandeira, Daniel Filipe Almeida. "Otimização de um sistema de impressão tridimensional bimaterial." Master's thesis, 2017. http://hdl.handle.net/10316/83042.

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Dissertação de Mestrado em Matemática apresentada à Faculdade de Ciências e Tecnologia<br>Neste trabalho estuda-se um sistema de impressão tridimensional no caso bimaterial e utilizando estereolitografia. A hipótese analisada é a emissão de luz laser a partir de múltiplas localizações da impressora. A zona de impressão e o objeto a imprimir são representados por meio de uma discretização espacial em voxels e estuda-se a projeção de um feixe de luz laser no plano de impressão.O problema de impressão tridimensional bimaterial é dividido em outros dois.Primeiro, analisa-se o problema da localizaç

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39

Shen, Chih-Tsung, and 沈志聰. "Application Analysis of Micro-Bimaterial Thermal Deformation Beam." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/05758129511536296411.

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CHEN, JIN-TZAIH, and 陳金在. "THEORETICAL AND EXPERIMENTAL INVESTIGATIONS OF CRACKED BIMATERIAL PROBLEMS." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/32875428974371756733.

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博士<br>國立清華大學<br>動力機械研究所<br>79<br>Adhesively joined materials or structures have been widely used in various engineering practices. In the process of manufacturing, fabrication or application, cracks are invariably produced. Many times, cracks are oriented arbitrarily to the bimaterial interface. Up to now, a thorough theoretical investigation of the problem is still not available. In this dissertation, the complex function method and the digital photoelastic technique will be employed to analyze, both the

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41

Citirik, Erman. "Elastic-plastic characterization of cracks on ductile bimaterial interfaces." 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3247198.

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42

Bowen, John Murray. "An experimental investigation of fracture at a bimaterial interface." Thesis, 1992. https://thesis.library.caltech.edu/2951/1/Bowen_jm_1992.pdf.

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The growth of a crack located at the interface between two linearly (visco)elastic solids is investigated experimentally. It is found that the crack may advance by kinking into either of the adherends or by propagating along the interface itself, depending on the applied loading. For the separation problem, in which crack advance occurs along the bimaterial interface, it is demonstrated that the time-dependent unbonding of the two joined viscoelastic solids follows a rate-dependent fracture process that can be described to a large extent by the viscoelastic properties of the two adherends. Mor

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43

Yang, Ping-Shung, and 楊秉順. "Analysis of Cracked Piezoelectric Bimaterial with Perfectly Bonded Interface." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/87667686179316649864.

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博士<br>國立成功大學<br>土木工程學系碩博士班<br>96<br>In this paper, the problems of a cracked anisotropic piezoelectric bimaterial with perfectly bonded interface are considered. Either one crack embedded in the lower-half material or two cracks embedded in either side of the interface is considered. Based on the generalized Stroh formalism, the problems are formulated in terms of systems of singular integral equations. The kernel functions developed are in complex form for general anisotropic piezoelectric materials. The systems of singular integral equations are solved numerically and the coupled electro- me

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44

Lopes, Leandro Rodrigues. "Impressão FDM de pares de materiais funcionais." Master's thesis, 2015. http://hdl.handle.net/1822/39543.

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Dissertação de mestrado integrado em Engenharia de Materiais<br>As técnicas de additive manufacturing (AM) permitem criar protótipos de uma forma mais simples e rápida quando comparadas com processos convencionais de prototipagem. Uma destas técnicas é a modelação por deposição de filamento, mais conhecida como Fused Deposition Modeling (FDM). Esta técnica consiste na deposição de filamentos em várias camadas, recriando as peças 3D previamente desenhas em CAD. As empresas que recorrem à técnica FDM para imprimir os seis protótipos usam máquinas profissionais que, na generalidade dos caso

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45

Lo, Yi-Hsu, and 羅翊栩. "Computation of Singular Stress Fields in Bimaterial V-notched Plates." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/34862655712074487438.

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碩士<br>國立臺灣大學<br>應用力學研究所<br>101<br>Based on linear elasticity, it is well known that the stresses is singular at the tip of a v-notched plate. The purpose of this thesis is to discuss the stress fields of an anisotropic bimaterial v-notched plate associated with tensile stress, and compute the stress intensity factors and the singular stress at the notch tip. In this thesis, the dual boundary integral equations and the near-tip stress field are combined to develop a numerical computation method. The boundary and the interface of the two materials are discretized into a number of elements, inclu

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46

Yuen-YouChou and 周原佑. "Analysis of Bimaterial Interface Crack Growth Using Cohesive Zone Model." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/44668705087017044876.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>98<br>From the perspectives of capabilities and manufacturing costs, a lot of structures and assembled using distinct materials. Under either thermal or mechanical stresses during fabrication or in-use conditions, debonding is likely to occur on the interface of materials. The conventional approach for studying the interface crack growth and related failure is by suing experimental tests to obtain empirical estimations. The required cost is high and the time duration is lengthy. To overcome this difficulty, the cohesive zone model (CZM) approach may be used to stu

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謝雄欽. "Finite Element Analysis of Singular Stress Field in Bimaterial Junction." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/79122072493846930052.

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碩士<br>國立成功大學<br>機械工程學系<br>89<br>Based on the complex formulation derived by N. I. Muskhelishvili, the singular stress field near a corner of bimaterial junction under mechanical and/or thermal loading is analyzed by using finite element approach. When the stress singularity orders both are real, the stress intensity factors can be determined. The singular stress field can be expressed as a sum of the symmetric state with a stress singularity of and the skew-symmetric state with a stress singularity of . With the theoretical basis, numerical result and experimental proof, the stre

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黃鼎元. "Characterizing Debonding Behavior of Flexible AMOLED using Bimaterial Fracture Mechanics." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/86gy38.

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碩士<br>國立交通大學<br>機械工程系所<br>105<br>This research aims to characterize the behaviors of a flexible active-matrix organic light-emitting diode (AMOLED) display during the debonding process using finite element analysis based on bimaterial fracture mechanics theory. In order to reduce the stress states within OLED and the defective rate, the stress distribution of OLED is also be concerned. There are two common ways to debond the AMOLED from the substrate, one is mechanical loading induced debonding and the other is pressure assistance debonding. Experimental observation indicated that when the AMO

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Tseng, Po-Chang, and 曾博昌. "On the interdigitated electrode with the bimaterial for hybrid capacitor." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/13322553960311498588.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>104<br>In this study, a hybrid capacitor is developed with the bi-material electrodes comprising equal amount of Li3V2(PO4)3 (LVP) and N-doped carbon. Two raw materials of LVP powder and N-doped carbon are synthesized in-house, characterized with X-ray diffraction, elemental analysis, Raman analysis, and BET analysis. The storage capabilities of the electrodes and hybrid capacitor are evaluated, using cyclic voltammetry, impedance spectroscopy, and galvanostatic charge- discharge experiments. Diffusion coefficients of lithium ion (DLi+) are measured with the electrod

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莊哲權. "Finite Element Analysis of Singular Stress Field in Anisotropic Bimaterial Wedge." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/10100105318663761029.

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碩士<br>國立成功大學<br>機械工程學系<br>89<br>Based on Lekhnitskii''s formulation, the singular stress field in an anisotropic bimaterial wedge with traction-free edges is analyzed by using finite element method. For cases with one and/or two real roots of stress singularity orders, the stress intensity factors can be determined. The phenomenon of stress singularity depends upon wedge angle and material properties. Some results are discussed by varying these two parameters. For cases with one root of stress singularity order, the stress singularity orders determined by F.E.M. match closely to

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