Relevant bibliographies by topics / Flexure / Dissertations / Theses
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Dissertations / Theses on the topic 'Flexure'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Vasquez, Daniel James. "Flexure-based nanomagnetic actuators." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1383481101&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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2

Gojuri, Arun. "Stability of End Notched Flexure Specimen." Thesis, Högskolan i Skövde, Institutionen för teknik och samhälle, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-4487.

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This paper deals with two-dimensional Finite Element Analysis of the End Notched Flexure (ENF) specimen. The specimen is known to be unstable if the crack length is shorter than some critical crack length acr. A geometric linear two-dimensional Finite Element (FE) analysis of the ENF specimen is performed to evaluate acr for isotropic and orthotropic elastic materials, respectively. Moreover, the Mode II Energy Release Rate (ERR) JII and the compliance of the specimen are calculated. The influence of anisotropy is studied. Comparisons are made with the results from beam theory. This work is an
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3

Bildsten, Erika Margit. "Analysis of novel flexure-based joint." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74423.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 53).<br>As robots and other actuated mechanisms get smaller, so must their moving parts. A novel flexure-based joint was developed for Squishbot1 by a team at MIT, which can be made small (sub-cm), or much larger. Here, pseudo-rigid-body modeling is used in conjunction with the geometry of the joint mechanism in order to create analytic models of the forces at play in the joint, so as to better enable their design and u
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4

Barnett, D. N. "Convection, elasticity and flexure inside terrestrial planets." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596394.

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In this dissertation, the large-scale geophysical behaviour of the Earth, Venus and Mars are compared, using data collected by the Magellan spaceprobe (for Venus) and the Viking and Mars Global Surveyor (MGS) probes (for Mars). Neither Venus nor Mars show evidence of plate tectonics operating at the present day. On Venus, the lack of water means the frictional resistance at faults and the viscous drag on the base of the moving lithospheric plates are too high to be overcome by the driving forces for plate tectonics. The high elastic thickness of Mars results in a large frictional resistance to
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5

Chen, Jay-San. "Standardisation of flexure testing of engineering ceramics." Thesis, University of Warwick, 2000. http://wrap.warwick.ac.uk/67042/.

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With the increase in usage of engineering ceramics, a new industrial standard is required in order to evaluate its properties and to perform a fair and just trade. The thesis investigates the faults and omissions of existing work and judges today's requirements thereby constructing a framework with which today's and future standards in flexure testing can be based. The draft standard presented in this thesis covers the three major testing methods for determining the biaxial flexural strength (modulus of rupture) of engineering ceramics. The ring-on-ring, ball-on-ring, and 4-Ball test fixtures
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6

D'Arrigo, Paolo. "Control of flexure in large astronomical spectographs." Thesis, University College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244064.

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7

Bry, Madeleine. "Flexure of the lithosphere at foreland basins." Thesis, University of Cambridge, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439115.

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8

Hunter, Johnny. "Flexure and rheology of Pacific oceanic lithosphere." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:fee30488-1a30-48ae-b47e-b6dbc4e3d4d6.

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The idea of a rigid lithosphere that supports loads through flexural isostasy was first postulated in the late 19th century. Since then, there has been much effort to investigate the spatial and temporal variation of the lithosphere's flexural rigidity, and to understand how these variations are linked to its rheology. In this thesis, flexural modelling is used to first re-assess the variation in the rigidity of oceanic lithosphere with its age at the time of loading, and then to constrain mantle rheology by testing the predictions of laboratory-derived flow laws. A broken elastic plate model
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9

Meyyappan, Karumbu Nathan. "Failure prediction of wire bonds due to flexure." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1737.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Mechanical 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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10

Haddad, David. "Lithospheric flexure and the evolution of Australian basins." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302396.

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11

Shilpiekandula, Vijay 1979. "Flexure-based nanopositioning systems : integrated design and control." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/57892.

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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 (p. 209-219).<br>This thesis deals with the design and control of flexure-based mechanisms for applications requiring multi-degree-of-freedom positioning and alignment. Example applications include positioning a probe or sample in atomic force microscopy, alignment of tool and sample in stamping processes, and fine-positioning of wafer steppers in semiconductor manufacturing. Such applications necessitate nanopositioning
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12

Dorosh, Mark Norman. "Damage growth in bending of composite beams." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28376.

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A study has been made of glass fibre reinforced plastic beams in three-point bending. In recent years, the importance of flexural loading in composites has manifested itself in the form of composite leaf springs, helicopter rotors, and other applications. This study is directed at the initiation, growth, characterization and measurement of damage in unidirectional and cross-ply composite beams. Beams were tested in three-point static and cyclic bending. Following damage initiation, either by a machined notch or by repeated cycling, damage growth has been characterized by two damage parameters
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13

Sarzynski, Melanie Diane. "Carbon foam characterization: sandwich flexure, tensile and shear response." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/55.

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The focus of this research is characterizing a new material system composed of carbon and graphite foams, which has potential in a wide variety of applications encompassing aerospace, military, offshore, power production and other commercial industries. The benefits of this new material include low cost, light weight, fire-resistance, good energy absorption, and thermal insulation or conduction as desired. The objective of this research is to explore the bulk material properties and failure modes of the carbon foam through experimental and computational analysis in order to provide a better u
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14

Reeves, Eric E. "Structural reliability of ultra-high performance concrete in flexure." Ohio : Ohio University, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1177090784.

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15

Awtar, Shorya 1977. "Synthesis and analysis of parallel Kinematic XY flexure mechanisms." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17945.

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Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, February 2004.<br>Includes bibliographical references (p. 193-198).<br>This thesis presents a family of XY flexure mechanisms with large ranges of motion, first-order decoupled degrees of freedom, and small parasitic error motions. Synthesis is based on an systematic and symmetric layout of constraints that are realized by means of common flexure building blocks. An analytical formulation incorporating geometric non-linearities is used in deriving the characteristics of these flexure building blocks. Of co
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16

Lees, J. M. "Flexure of concrete beams pre-tensioned with aramid FRPs." Thesis, University of Cambridge, 1997. https://www.repository.cam.ac.uk/handle/1810/273030.

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17

Mertz, David Hunter. "Lift-off performance in flexure pivot pad and hybrid bearings." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3197.

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18

Razak, Hashim Abdul. "Time dependent effects in reinforced concrete sections subjected to flexure." Thesis, University of Surrey, 1986. http://epubs.surrey.ac.uk/1003/.

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19

RAMIREZ, JORGE DUENAS. "BLOCK-FLEXURE TOPPLING MECHANISM: CASE NW SLOPE TINTAYA´S MINE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2006. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9597@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Esta tese apresenta o fenômeno de ruptura por tombamento bloco-flexural, que acontece na zona NW da mina Tintaya. O objetivo do presente estudo é contribuir o conhecimento de este tipo de fenômeno de ruptura, quantificando as características do maciço rochoso com as técnicas da mecânica das rochas. O trabalho inicia-se por uma caracterização geral da zona de estudo, com especial relevo das propriedades geomec
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20

Ljubicic, Dean M. "Design and analysis of a monolithic flexure atomic force microscope." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45201.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.<br>Includes bibliographical references (p. 175-178).<br>This thesis details the design, manufacture, and testing of a sub-nanometer accuracy atomic force microscope. It was made to be integrated into the Sub-Atomic Measuring Machine (SAMM) in collaboration with the University of North Carolina at Charlotte (UNCC). The microscope uses a tuning fork sensor to gauge its proximity to the sample surface. The sensor is fixed to a stage that is guided to move in one degree of freedom by a monolithic flexure.
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21

Delgado-Velázquez, Iván. "Nonlinear vibration of a cantilever beam /." Online version of thesis, 2007. http://hdl.handle.net/1850/3930.

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22

Luty, Mark. "Precision balances for measurement of mass and air density." Thesis, Brunel University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363465.

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23

Nallagula, Sandeep. "Behavior and Flexure Analysis of Balsa Wood Core Sandwich Composites: Experimental, Analytical and Finite Element Approaches." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/371.

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The load-deflection behavior of a US Army Corps of Engineers available sandwich plates in three-point bending with glass phenolic facings and balsa wood core is being investigated under room and elevated temperatures. Test data on bending rigidity, critical interfacial failure (skin-to-core interface) and shear stress are collected and analyzed. The load-deflection curves plots up to the point of failure initiation are being studied. The effects of the span and the radius of the loading nose on the bending modulus and strength are examined systematically. Theoretical calculations from
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24

Lavu, Srikanth. "Failure analysis and performance modelling of a MEMS flexure electrothermal actuator." Thesis, Heriot-Watt University, 2008. http://hdl.handle.net/10399/2053.

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Reliability is a major challenge for the successful exploitation of MEMS technology. ' This thesis presents a systematic taxonomy of typical failure modes and effects in MEMS. The failures are classified according to their occurrence: manufacturing, operation, environmental effect and package related effect. To prioritise these failures, a systematic proactive Failure Mode and Effect Analysis (FMEA) is presented as a tool to be used concurrently in the design phase. The FMEA is successfully applied on a MEMS flexure electrothermal actuator. The FMEA study identified the key issues affecting th
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25

Dryburgh, Gillian. "Bifurcation and vibration of a surface-coated elastic block under flexure." Thesis, University of Glasgow, 1999. http://theses.gla.ac.uk/2023/.

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The behaviour of a surface-coated rectangular, non-linearly elastic block subject to (plane-strain) flexure is investigated in this thesis. We consider a rectangular block of incompressible, isotropic elastic material coated with a thin elastic film on part of its boundary. Initially, the bulk material undergoes a non-homogeneous deformation and the equilibrium of the coated body is examined on the basis of the elastic surface coating theory derived by Steigmann and Ogden (1997a). Incremental displacements are then superimposed on the finitely deformed configuration in order to study possible
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26

Matloff, Laura Yu. "Design and optimization of x-y-[t̳h̳e̳t̳a̳]z̳, cylindrical flexure stage." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/83727.

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Thesis (S.B.)--Massachusetts Institute of Technology, Department of Mechanical Engineering, 2013.<br>Cataloged from PDF version of thesis. In title on title page, double-underscored "t̳h̳e̳t̳a̳" appears as Greek letter. In title on title page, double underscored "z̳" appears as subscript.<br>Includes bibliographical references (pages 63-64).<br>Cylindrical flexures (CFs) are composed of curved beams whose length is defined by a radius, R, and a sweep angle, [phi], [1]. The curved nature of the beams results in additional kinematics, requiring additional design rules beyond those used for strai
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27

Moon, Daniel K. (Daniel Kyeongtaek) 1978. "Flexure based mounts for sensitive payloads : a management and engineering study." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8537.

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Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.<br>Includes bibliographical references (p. 51-52).<br>With the cooperation of the Los Alamos National Laboratory and the Massachusetts Institute of Technology, an investigative and design study was performed to examine the history of the W80- 0 Area Aft Mount, understand its performance, and explore potential new designs. Simultaneously, professional and technical enhancement of the author was achieved. The historical organization of LANL influences the design space for this project, and under
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28

Hopkins, Jonathan B. (Jonathan Brigham). "Design of parallel flexure systems via Freedom and Constraint Topologies (FACT)." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39879.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.<br>Includes bibliographical references (p. 391-393).<br>The aim of this thesis was to generate the knowledge required to represent the possible freedom topologies (motions of a mechanism) and the possible constraint topologies (flexural elements that guide the mechanism) in a form that designers can use to design parallel flexure systems. The framework that links these topologies enables designers to create three-dimensional, multi-axis flexure systems by using "Freedom and Constraint Topologies" (FACT
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29

Segado, Martin Alan. "Design of planar-flexure-based contacts for high-repeatability kinematic couplings." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40484.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.<br>Includes bibliographical references (p. 29).<br>This research assesses the effects of planar flexural elements on the repeatability of a high-precision kinematic coupling. Few devices exist that are capable of passive, repeatable nanoscale fixturing; this research facilitates the design of such devices by providing a more complete understanding of how flexural elements affect their performance. Improvements in coupling technology are expected to decrease production and assembly costs in a variety of
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30

Malan, Andreas Dawid. "Critical normal traffic loading for flexure of bridges according to TMH7." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80013.

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Thesis (MScEng)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Different types of live loading due to traffic may act on bridges. The focus of this study is on normal traffic loading according to the South African specification of TMH7. Heavy vehicles are not included in normal traffic loading. TMH7 represents the code of practice for the design of highway bridges and culverts in South Africa. The aim of the study is to provide an insight into the flexural analysis of skew bridges, under the effects of normal traffic loading. The need for the study arose since the specification of
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31

Wallace, Michelle Hall. "Application of numerical techniques to faulting and flexure of the lithosphere." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185776.

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This research investigates problems of faulting and flexure of the lithosphere using the finite element technique. I examined two aspects of faulting, the nucleation and growth of dip slip faults in a stable craton in Chapter 2, and the rupture of the Loma Prieta earthquake in Chapter 3. Linear elastic fracture mechanics and the shear fracture energy criteria are used in conjunction with the finite element method to evaluate the stability of fault rupture. I investigated fault nucleation and growth under conditions of variable dip and shear fracture energy. Strain required for fault growth var
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32

Joshi, Angela. "THE INTERACTION OF FLEXURE AND COMPRESSION IN REGULAR AND OFFSET EXTERIOR COLUMNS." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/theses/2558.

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When a structural element is acted upon by axial compressive force simultaneously with bending, the design must consider the effect of combined bending and compression. Hence, the structure should be designed with the consideration of bending moment in order to provide the enough design strength to the member. The main objective of this thesis is to compare the effect of interaction of flexural moment and axial compressive force on the regular column of the steel moment frame with the same column when cantilever section is introduced into the frame as the loading is kept constant in all three
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Ali, Alameer. "Behaviour of Prestressed Ultra-High Performance Concrete I-Beams Subjected to Shear and Flexure." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24280.

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Ultra-high performance concrete (UHPC) is a new type of concrete developed by selecting the particle sizes and gradation in the nano- and micro-scales targeting the highest possible packing. The resulting concrete with very high density is called UHPC. UHPC has very low permeability and hence it is very highly durable compared to traditional or high performance concrete (HPC). Micro reinforcement of UHPC by random distributed steel-synthetic fibers results in superior mechanical properties such as very high compressive and tensile strengths, high ductility, and high fatigue resistance. The mat
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34

Moorhouse, Kevin Michael. "Determination of a Whiplash Injury Severity Estimator (WISE Index) for Occupants in a Motor Vehicle Accident." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36814.

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The diagnosis of a whiplash injury is a very subjective process. A claim of this type of injury is usually made on the basis of pain, which may or may not be accompanied by clinical signs of trauma. This study was aimed at providing a more objective, quantitative approach to identifying the potential for whiplash injury in a directfront-or-rear-end automobile collision. The Whiplash Injury Severity Estimator (WISE Index) was created using data obtained from Dr. Schneck's personal library of case files, including the collisionacceleration of the vehicle, and the height, weight, and sex of th
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Al-Ghothani, Ali M. "A unified approach to the dynamics of bending and extension of moderately thick laminated composite plates /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266691094416.

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36

Rimpel, Aaron Michael. "Analysis of flexure pivot tilting pad gas bearings with different damper configurations." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3011.

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37

Sim, Kyu-Ho. "Rotordynamic and thermal analyses of compliant flexure pivot tilting pad gas bearings." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1575.

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38

Solmaz, Taylan. "Evaluation Of Performance Based Displacement Limits For Reinforced Concrete Columns Under Flexure." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612323/index.pdf.

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Reinforced concrete frame buildings are the most common type of constructions in Turkey which are exposed to various types of forces during their lifetime. Seismic performance of reinforced concrete frame buildings is dominated by columns which can be classified as primary members of these structures. When current codes are considered, all of them contain several provisions in order to implement reliable seismic performances of reinforced concrete columns. In order to evaluate the accuracy of these provisions, analytical and parametric studies are carried out for flexure critical reinforced co
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Larsen, Jeffrey James. "Continuum structural representation of flexure and tension stiffened one-dimensional spacecraft architectures." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/larsen/LarsenJ0509.pdf.

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Spacecraft designs are a result of system properties and design variables that ensure the spacecraft will operate to mission objectives. The focus of this effort is a set of global system variables for frequency, length, total mass and the ratio between the payload mass and the support structure mass. These properties will be explored to observe the behavior of the system and develop relationships that govern the trade-offs between the variables and assist mission planners in future spacecraft design. These variables will be observed in one-dimensional structures where the dominating dimension
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Dirksen, Frank [Verfasser]. "Non-intuitive Design of Compliant Mechanisms Possessing Optimized Flexure Hinges / Frank Dirksen." Hamburg : Helmut-Schmidt-Universität, Bibliothek, 2014. http://d-nb.info/1046797948/34.

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41

Filmer, Paul Edward. "Flexure of the oceanic lithosphere in the vicinity of the Marquesas Islands." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/52955.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1992.<br>Includes bibliographical references (p. 225-234).<br>by Paul Edward Filmer.<br>Ph.D.
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42

Pollard, Lloyd Wayne 1936. "Design of a flexure mount for optics in dynamic and cryogenic environments." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276741.

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The design of the flexure mount recently submitted to NASA Ames for the structural support of the primary mirror of the Space Infrared Telescope Facility (SIRTF) is presented. The flexure system must passively accommodate the differential thermal contraction between the glass mirror and the aluminum structure of the telescope during cryogenic cooldown. Further, it must support the one meter diameter, 116 kilogram (258 pound) primary mirror during a severe launch to orbit. Procedures used to establish the required radial compliance using computer programs NASTRAN and FRINGE are discussed. The p
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Jawdhari, Akram Rasheed. "BEHAVIOR OF RC BEAMS STRENGTHENED IN FLEXURE WITH SPLICED CFRP ROD PANELS." UKnowledge, 2016. http://uknowledge.uky.edu/ce_etds/37.

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FRP laminates and fabrics, used as an externally bonded reinforcement (EBR) to strengthen or repair concrete members, have proven to be an economical retrofitting method. However, when used to strengthen long-span members or members with limited access, the labor and equipment demands may negate the benefits of using continuous EBR FRP. Recently, CFRP rod panels (CRPs) have been developed and deployed to overcome the aforementioned limitations. Each CRP is made of several small diameter CFRP rods placed at discrete spacing. To fulfill the strengthening length, CRP’s are spliced together and ma
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Jordan, Tom A. R. M. "Gravity anomalies, flexure, and the long-term rigidity of the continental lithosphere." Thesis, University of Oxford, 2007. http://ora.ox.ac.uk/objects/uuid:9f803b42-522e-442b-9849-bb8e6c2a5494.

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The cause and distribution of spatial variations in the mechanical properties of the continental lithosphere are fundamental questions for modern geology. In this study variations in long-term lithospheric rigidity have been investigated. These investigations used profile- and grid-based flexural models of the lithosphere’s response to geologically imposed topographic, or buried, loads. These models were constrained by topographic and gravity data allowing recovery of best fitting rigidity values. In Oman a Cretaceous ophiolite acts as a significant load on the continental crust. Flexural mode
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45

Al-Obaidi, Salam. "Behavior of Reinforced Concrete Beams Retrofitted in Flexure Using CFRP-NSM Technique." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2294.

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A variety of retrofitting methods are used to upgrade existing structures. For example, steel plates and Fiber Reinforced Polymer (FRP) jackets are externally bonded to members to increase their capacity in flexure and shear. However, due to the issue of corrosion these strengthening systems may lose their efficiency with time. FRP materials have been used to strengthen many structural components of different shapes and types. FRP jackets, FRP Strips, and FRP rods have commonly been used to rehabilitate existing structural components. The many advantages of using FRP as strengthening materials
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46

Hamai, Lamine. "Étude thermomécanique de la zone de transition mer-continent de la marge algérienne : implication géodynamique." Thesis, Nice, 2016. http://www.theses.fr/2016NICE4021/document.

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Comprendre comment s’initie une subduction au niveau d’une marge passive est un problème géodynamique majeur, mais il reste très débattu en raison des forces nécessaires pour provoquer la flexion de la plaque plongeante, et dépasser la résistance frictionnelle de la lithosphère pour localiser cette subduction. Formant la bordure sud de la Méditerranée Occidentale, la marge algérienne subit des conditions aux limites en compression en raison de la convergence Afrique-Eurasie à un taux de moins de 1 cm/an. Ce contexte favorise l’inversion de cette marge nord-africaine et possiblement le début d’
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47

Peng, Jun, and 彭軍. "Effects of strain gradient on maximun concrete stress and flexural capacity of normal-strength RC members." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43085787.

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48

Peng, Jun, and 彭军. "Strain gradient effects on flexural strength and ductility design of normal-strength RC beams and columns." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48329630.

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The stress-strain characteristics of concrete developed in flexure is very important for flexural strength design of reinforced concrete (RC) members. In current RC design codes, the stress-strain curve of concrete developed in flexure is obtained by scaling down the uni-axial stress-strain curve to account for the strain gradient effect. Therefore, the maximum concrete stress that can be developed under flexure is smaller than its uni-axial strength, and the use of which always underestimates the flexural strength of RC beams and columns even though the safety factors for materials are taken
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49

Fuchs, John Peter. "Numerical and experimental investigation of the bending response of thin-walled composite cylinders." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40109.

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A numerical and experimental investigation of the bending behavior of six eight-ply graphite-epoxy circular cylinders is presented. Bending is induced by applying a known end-rotation to each end of the cylinder, analogous to a beam in bending. The cylinders have a nominal radius of 6 inches, a length-to-radius ratio of 2 and 5, and a radius-to-thickness ratio of approximately 160. A [±45/0/90]S quasi-isotropic layup and two orthotropic layups, [±45/02]S and [±45/902]s, are studied. A geometrically nonlinear special-purpose analysis, based on Donnell's nonlinear shell equations, is develope
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50

Peng, Jun. "Effects of strain gradient on maximun concrete stress and flexural capacity of normal-strength RC members." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43085787.

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