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Dissertations / Theses on the topic 'Thin-walled engineering structure'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Wang, Lyang Suan. "Automating Parametric Redesign of Structural Thin-Walled Frames Based On Topology Optimized Structure." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu156618342438725.

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2

Kolhatkar, Tanmay. "Nonlinear dynamic interactions between a rigid attachment bolted to a thin-walled sheet metal structure." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587124580918153.

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3

Sonje, Abhijit Ravindra. "Experimental and finite element investigation into the effects of manufacturing variability on the dynamic response of a bolted interface between a bracket and a thin-walled sheet metal structure." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546418059243072.

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4

Achour, Belkacem. "Nonlinear behaviour of thin walled bars." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314695.

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5

Zheng, Li Ph D. Massachusetts Institute of Technology. "Fracture of welded aluminum thin-walled structures." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/35629.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, February 2006.<br>Includes bibliographical references (leaves 269-279).<br>A comprehensive methodology was developed in the thesis for damage prediction of welded aluminum thin-walled structures, which includes material modeling, calibration, numerical simulation and experimental verification. An extensive experimental program was conducted on large-scale welded panels used on Inter City Express (ICE) high-speed European passenger trains. These panels consist of geometrically complex extrusions, which are

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6

Kwok, Raymond Moon Keung. "Mechanics of damaged thin-walled cylindrical shells." Thesis, University of Surrey, 1991. http://epubs.surrey.ac.uk/993/.

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7

Al-Sheikh, Abdelraouf. "Behaviour of thin-walled structures under combined loads." Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/7413.

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The thesis is concerned with the theory of thin-walled beams of open section. The aim is to formulate a general beam element for analysis of this type of structure. Thus a general stiffness matrix for the element, and a transformation matrix for loads and displacements with respect to centroid and shear centre were derived, by taking into consideration the value of-bimoment due to an axial force offset from the shear centre. Internal forces including bimoments, and global displacements including warping were calculated, and the stress distributions on the cross-sections of a beam at each-eleme

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8

Zhang, Boshu. "Bistable and multi-stable thin-walled structures." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:05e0e48f-2da6-4d53-914a-cc1b46b9e87d.

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This study aims to comprehend the bistable and multi-stable behaviour of flexible straws with the intention of utilising it for future engineering applications. This behaviour is achieved by the multiple inversions of conical frustum shells within the corrugation of a flexible straw. This study examined the effects of various material models, geometry variables and loading methods on the inversion of close-top and open-top conical frustum shells via experiments and FEM simulations. This thesis consists of three main parts, and the second and the third parts are complementary to each other: Fir

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9

Howells, Hugh Alan. "Collapse behaviour of space trusses with thin-walled members." Thesis, University of Surrey, 1985. http://epubs.surrey.ac.uk/1038/.

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10

Hamid, A. B. A. "Bending of thin-walled beams of shallow open section." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303260.

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11

Nemir, M. T. M. "Finite element stability analysis of thin-walled steel structures." Thesis, University of Salford, 1985. http://usir.salford.ac.uk/2219/.

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Recent applications in the use of light gauge steel members have been concerned with developing large scale systems built entirely from cold-formed steel members. An explicit analysis of such structures is complicated by the different phenomena that the structure may be prone to during loading. In particular, elastic buckling phenomena is an important consideration in the design of such structures since the load at which buckling occurs often provides a close upper bound to the carrying capacity of the structure. The first part of this two-part thesis (Part I, Chaptersl-8) has been devoted to

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12

Kim, Ji Hoon. "Conceptual Design Tools for Hybrid Joints for Thin-Walled Structures." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595464214740813.

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13

Barlow, Analise. "Strength Investigation of Damaged and Repaired Thin-Walled Composite Structures." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/7714.

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The purpose of this research was to quantify the strength of novel composite repair methods for thin-walled composite structures. Carbon/epoxy plates were manufactured and repairs were made at Gloyer-Taylor Laboratories. At BYU, specimens were damaged in a controlled and repeatable process. Three damage modes were implemented: impact, groove, and abrasive damage. Tensile strength tests were performed on control, damaged, and repaired specimens. Four 24 x 24 in (60 x 60 cm) carbon/epoxy plates were received. Each plate was made up of seven plies cured together with epoxy resin for a nomin

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14

Buhagiar, Spiridione. "Behaviour and design of structures using thin-walled cold-formed sections." Thesis, Imperial College London, 1993. http://hdl.handle.net/10044/1/8557.

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15

Khong, Poh Wah. "Development of a microcomputer finite strip analysis for thin walled structures." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314703.

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16

Kim, Heung-Soo 1971. "Crash behavior of three dimensional thin-walled structures under combined loading." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8711.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2001.<br>Includes bibliographical references (leaves 197-204).<br>For the weight efficient and crashworthy design of the structural body of a transportation system, a thorough understanding of crushing behavior of thin-walled structural members such as spot-welded sheet metal beams or extruded aluminum beams must be gained. In the present thesis, the complex crushing process of three-dimensional thin-walled structures subject to combined loading is solved analytically and numerically. Also, several new design c

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17

Bates, David Nicholas. "The mechanics of thin walled structures, with special reference to finite rotations." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38231.

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18

White, Mark Dermot. "Collapse performance of thin walled box beam structures under axial impact loading." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240750.

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19

Eslimy-Isfahany, Seyed Hamid Reza. "Dynamic response of thin-walled composite structures with application to aircraft wings." Thesis, City University London, 1998. http://openaccess.city.ac.uk/7719/.

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A general analytical method is developed to study first the buckling behaviour and then the dynamic characteristics of thin-walled composite structures with the presence of bending torsion coupling. The dynamic response theory incorporates the dynamic stiffness matrix approach and generalised coordinates using the normal mode method. Structural components considered are thin-walled laminated composite beams with carbon-fibre, glass-fibre or other reinforced plastic lay-ups. The examples of such beams and their applications include aircraft wings, hulls of ships, helicopter and wind turbine bla

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20

Meshreki, Mouhab. "Dynamics of thin-walled aerospace structures for fixture design in multi-axis milling." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32614.

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Milling of thin-walled aerospace structures is a critical process due to the high flexibility of the workpiece. Available models for the prediction of the effect of the fixture on the dynamic response of the workpiece are computationally demanding and fail to represent practical cases for milling of thin-walled structures. Based on the analysis of typical structural components encountered in the aerospace industry, a generalized unit-element, with the shape of an asymmetric pocket, was identified to repre

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21

Kiymaz, Guven. "Stability criteria for thin-walled box columns of high performance steel in axial compression." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248129.

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22

Tan, S. H. "Experimental and analytical studies of cold-formed thin-walled frameworks with semi-rigid connections." Thesis, University of Strathclyde, 1991. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21269.

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The behaviour of symmetrical single and double storey frameworks, constructed with cold-formed thin-walled plain channel members and semi-rigid connections, is investigated both analytically and experimentally in this thesis. A method of analysis, which is based on the matrix stiffness method, is developed and written into a computer programme. Generalized relationships between forces and displacements at the ends of an element with semi-rigid connections are derived and presented in a matrix form. The analysis takes account of local and torsional flexural buckling, connection strength and ful

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23

El-Hammasi, S. A. "Behaviour of open restrained thin-walled concrete beams under interaction of bending and torsion." Thesis, University of Bristol, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373830.

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24

Walker, B. D. "A combined finite strip/finite element method for the analysis of partially prismatic thin-walled structures." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375679.

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25

Khan, Jehan Zeb. "Static, dynamic and aeroelastic behaviour of thin-walled composite structures with application to aircraft wings." Thesis, City University London, 1992. http://openaccess.city.ac.uk/7992/.

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Theoretical and experimental investigations of the static and dynamic behaviour of thin-walled structures are carried out with the ultimate aim of improving prediction procedures for various aeroelastic phenomena. The dynamic stiffness matrix approach is used for structural idealization, while strip theory and Theodorsen's function C(k) are used for the aerodynamic idealization. The dynamic composite beam with with an axial load centroid, has been carried out using Special cases, that been identified and stiffness matrix for a thin-walled geometric and material coupling together (compressive o

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26

Back, Sung-Yong. "A shear-flexible finite element model for lateral torsional buckling analysis of thin-walled open beams." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/20999.

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27

Lo, Patrick Kar-Leung. "Comparison of theory and experiment for flexural-torsional buckling of laminated composite columns." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/50051.

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Vlasov’s one-dimensional structural theory for thin-walled open section bars was originally developed and used for metallic elements. The theory was recently extended to laminated bars fabricated from advanced composite materials. The purpose of this research is to provide a study and assessment of the extended theory. The focus is on flexural and torsional-flexural buckling of thin-walled, open section, laminated composite columns. Buckling loads are computed from the theory using a linear bifurcation analysis, and are compared to available experimental data. Also, a geometrically nonlinear b

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28

Dababneh, Odeh. "Design, Analysis And Optimization Of Thin Walled Semi-monocoque Wing Structures Using Different Structural Idealizations In The Preliminary Design Phase." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613759/index.pdf.

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This thesis gives a comprehensive study on the effect of using different structural idealizations on the design, analysis and optimization of thin walled semi-monocoque wing structures in the preliminary design phase. In the design part, wing structures are designed by employing two different structural idealizations that are typically used in the preliminary design phase. In the structural analysis part, finite element analysis of one of the designed wing configurations is performed using six different one and two dimensional element pairs which are typically used to model the sub-elements of

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29

Saadé, Katy. "Finite element modeling of shear in thin walled beams with a single warping function." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211043.

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The considerable progress in the research and development of thin-walled beam structures responds to their growing use in engineering construction and to their increased need for efficiency in strength and cost. The result is a structure that exhibits large shear strains and important non uniform warping under different loadings, such as non uniform torsion, shear bending and distortion.<p><p>A unified approach is formulated in this thesis for 3D thin walled beam structures with arbitrary profile geometries, loading cases and boundary conditions. A single warping function, defined by a linear

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30

WANG, YONGBING. "STRUCTURAL BEHAVIOR AND DESIGN OF TWO CUSTOM ALUMINUM EXTRUDED SHAPES IN CUSTOM UNITIZED CURTAIN WALL SYSTEMS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1147722350.

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31

Шейченко, Роман Ігорович. "Забезпечення міцності тонкостінних конструкцій із підвищеними технічними характеристиками". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41327.

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Дисертація на здобуття наукового ступеня кандидата технічних наук (доктора філософії) за спеціальністю 05.02.09 "Динаміка та міцність машин" (13 – Механічна інженерія). – Національний технічний університет «Харківський політехнічний інститут», Харків, 2019. Потреби сучасної промисловості, транспорту і сфери послуг у інноваційних виробах із підвищеними техніко-економічними характеристиками останнім часом різко зростають. При цьому велику частку серед такої продукції займають тонкостінні машинобудівні конструкції, у яких раціонально поєднуються масові і характеристики міцності. У той же час на б

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32

Шейченко, Роман Ігорович. "Забезпечення міцності тонкостінних конструкцій із підвищеними технічними характеристиками". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41324.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.02.09 – динаміка таміцність машин. Національний технічний університет «Харківський політехнічний інститут», Міністерство освіти і науки України, Харків, 2019. Дисертація присвячена удосконаленню методів і моделей для проектного забезпечення міцності тонкостінних машинобудівних конструкцій при дії комплексу експлуатаційних навантажень. Обґрунтування раціональних параметрів і конструктивних рішень ТСМБК здійснюється за критеріями мінімізації маси, зниження напружень, підвищення терміну експлуатації. Ураховують

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33

Le, Thanh Nam. "Nonlinear dynamics of lexible structures using corotational beam elements." Phd thesis, INSA de Rennes, 2013. http://tel.archives-ouvertes.fr/tel-00954739.

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The purpose of this thesis is to propose several corotational beam formulations for both 2D and 3D nonlinear dynamic analyse of flexible structures. The main novelty of these formulations is that the cubic interpolation functions are used to derive not only the internal force vector and the tangent stiffness matrix but also the inertial force vector and the dynamic matrix. By neglecting the quadratic terms of the local transversal displacements, closed-form expressions for the inertial terms are obtained for 2D problems. Based on an extensive comparative study of the parameterizations of the f

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34

Kim, Sangseop. "Determination of Wall Thickness and Height when Cutting Various Materials with Wire Electric Discharge Machining Processes." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/294.

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This thesis looks at the capabilities of cutting thin webs on Wire EDM machines that are difficult or impossible to machine using conventional methods. Covered is an investigation of how different material and web thickness affect the capability of machining thin-walled parts. Five different metals are used for the test; Aluminum 6061 T6, Yellow Brass SS360, 420 Stainless Steel, D2 unheat-treated tool steel 25-30 RC, and D2 heat-treated tool steel 60-65 RC. The small parts were cut to a 6mm (0.2362 inch) height with six different wall thicknesses: 0.30mm (0.0118 inch), 0.25mm (0.0098 inch), 0.

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35

Picault, Elia. "Un modèle de poutre à section mince flexible - Application aux pliages 3D de mètres rubans." Phd thesis, Aix-Marseille Université, 2013. http://tel.archives-ouvertes.fr/tel-00921931.

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Ce travail a pour cadre une collaboration entre le LMA et Thales Alenia Space. Nous nous intéressons au comportement des structures flexibles et plus particulièrement des mètres rubans qui ont la particularité de pouvoir, grâce à l'aplatissement de la section, s'enrouler ou développer des pliages localisés. Une première thèse a permis d'une part la mise au point d'un nouveau type de mètre ruban au déroulement maîtrisable thermiquement et d'autre part le développement d'un modèle plan de poutre à section flexible. Dans le travail de thèse présenté ici, nous proposons une version étendue de ce m

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36

(6593015), Prathamesh Narendra Chaudhari. "DESIGN OF AN ORIGAMI PATTERNED PRE-FOLDED THIN WALLED TUBULAR STRUCTURE FOR CRASHWORTHINESS." Thesis, 2019.

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<div>Thin walled tubular structures are widely used in the automotive industry because of its weight to energy absorption advantage. A lot of research has been done in different cross sectional shapes and different tapered designs, with design for manufacturability in mind, to achieve high specific energy absorption. </div><div><br></div><div>In this study a novel type of tubular structure is proposed, in which predesigned origami initiators are introduced into conventional square tubes. The crease pattern is designed to achieve extensional collapse mode which results in decreasing the initial

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37

Morozov, Konstantin E. "Crashworthiness modelling of thin-walled composite structures." Thesis, 2003. http://hdl.handle.net/10413/4222.

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This thesis is concerned with the study of the crashworthiness of thin-walled composite structures. Composites are being used more and more in different fields of engineering, particularly, in aerospace and automotive industries because of their high strength-to-weight and stiffness-to-weight ratios, quality and cost advantages. More and more metal parts in cars for instance become or are already replaced by new advanced materials. Composite materials are included in these new advanced materials with the following advantages: weight reduction, corrosion resistance, aesthetics and style, isolat

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38

(7039910), Shantanu Ramesh Shinde. "Origami inspired design of thin walled tubular structures for impact loading." Thesis, 2019.

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<div>Thin walled structures find wide applications in automotive industry as energy absorption devices. A great deal of research has been conducted to design thin walled structures, where the main objective is to reduce peak crushing forces and increase energy absorption capacity. With the advancement of computers and mathematics, it has been possible to develop 2D patterns which when folded turn into complex 3D structures. This technology can be used to develop patterns for getting structures with desired properties. </div><div>In this study, square origami tubes with folding pattern (Yoshimu

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39

Mursi, Mohanad Civil &amp Environmental Engineering Faculty of Engineering UNSW. "The behaviour and design of thin walled concrete filled steel box columns." 2007. http://handle.unsw.edu.au/1959.4/40494.

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This thesis investigates the behaviour of hollow and concrete filled steel columns fabricated from thin steel plates. The columns are investigated under axial, uniaxial and biaxial loading. The currently available international standards for composite structures are limited to the design of concrete filled steel columns with compact sections and yield stress of steel up to 460 N/mm2. This thesis consists of both experimental and analytical studies and design recommendations for future use. Three comprehensive series of experimental tests are conducted on hollow and concrete filled steel column

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Moradi, Mohammadreza. "Structural applications of metal foams considering material and geometrical uncertainty." 2011. https://scholarworks.umass.edu/dissertations/AAI3482649.

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Metal foam is a relatively new and potentially revolutionary material that allows for components to be replaced with elements capable of large energy dissipation, or components to be stiffened with elements which will generate significant supplementary energy dissipation when buckling occurs. Metal foams provide a means to explore reconfiguring steel structures to mitigate cross-section buckling in many cases and dramatically increase energy dissipation in all cases. The microstructure of metal foams consists of solid and void phases. These voids have random shape and size. Therefore, randomne

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