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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Design-oriented thermoelastic analysis, sensitivities, and approximations for shape optimization of aerospace vehicles /

Bhatia, Manav. January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 101-110).
12

A computational method for thermoviscoelasticity with applications to rock mechanics /

Lee, Seong Chul January 1984 (has links)
No description available.
13

Development and implementation of a finite element solution of the coupled neutron transport and thermoelastic equations governing the behavior of small nuclear assemblies

Wilson, Stephen Christian 29 August 2008 (has links)
Not available
14

An instrument for the measurement of the spectrum of thermoelastic noise in sapphire.

Hollitt, Christopher January 2007 (has links)
Title page, contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library. / This thesis describes the design and construction of an instrument intended to measure the length noise present in optical materials. The detection of thermoelastic noise in sapphire provides the initial motivation for the instrument, though the intent is to build a system capable of robustly characterising a variety of noise sources in multiple materials. Theoretical modelling is used to design a system that is expected to be dominated by thermoelastic noise. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1295741 / Thesis (Ph.D.) -- University of Adelaide, School of Chemistry and Physics, 2007
15

An instrument for the measurement of the spectrum of thermoelastic noise in sapphire.

Hollitt, Christopher January 2007 (has links)
Title page, contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library. / This thesis describes the design and construction of an instrument intended to measure the length noise present in optical materials. The detection of thermoelastic noise in sapphire provides the initial motivation for the instrument, though the intent is to build a system capable of robustly characterising a variety of noise sources in multiple materials. Theoretical modelling is used to design a system that is expected to be dominated by thermoelastic noise. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1295741 / Thesis (Ph.D.) -- University of Adelaide, School of Chemistry and Physics, 2007
16

Development and implementation of a finite element solution of the coupled neutron transport and thermoelastic equations governing the behavior of small nuclear assemblies

Wilson, Stephen Christian, January 1900 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.
17

Thermoelastic analysis and optimization of functionally graded plates and shells /

Pelletier, Jacob Leo. January 2005 (has links) (PDF)
Thesis (M.S.) in Mechanical Engineering--University of Maine, 2005. / Includes vita. Includes bibliographical references (leaves 148-154).
18

Thermoelastic Analysis and Optimization of Functionally Graded Plates and Shells

Pelletier, Jacob Leo January 2005 (has links) (PDF)
No description available.
19

The equations of polyconvex thermoelasticity

Galanopoulou, Myrto Maria 25 November 2020 (has links)
In my Dissertation, I consider the system of thermoelasticity endowed with poly- convex energy. I will present the equations in their mathematical and physical con- text, and I will explain the relevant research in the area and the contributions of my work. First, I embed the equations of polyconvex thermoviscoelasticity into an aug- mented, symmetrizable, hyperbolic system which possesses a convex entropy. Using the relative entropy method in the extended variables, I show convergence from ther- moviscoelasticity with Newtonian viscosity and Fourier heat conduction to smooth solutions of the system of adiabatic thermoelasticity as both parameters tend to zero and convergence from thermoviscoelasticity to smooth solutions of thermoelasticity in the zero-viscosity limit. In addition, I establish a weak-strong uniqueness result for the equations of adiabatic thermoelasticity in the class of entropy weak solutions. Then, I prove a measure-valued versus strong uniqueness result for adiabatic poly- convex thermoelasticity in a suitable class of measure-valued solutions, de ned by means of generalized Young measures that describe both oscillatory and concentra- tion e ects. Instead of working directly with the extended variables, I will look at the parent system in the original variables utilizing the weak stability properties of certain transport-stretching identities, which allow to carry out the calculations by placing minimal regularity assumptions in the energy framework. Next, I construct a variational scheme for isentropic processes of adiabatic polyconvex thermoelasticity. I establish existence of minimizers which converge to a measure-valued solution that dissipates the total energy. Also, I prove that the scheme converges when the limit- ing solution is smooth. Finally, for completeness and for the reader's convenience, I present the well-established theory for local existence of classical solutions and how it applies to the equations at hand.
20

Conjugate Heat Transfer On A Gas Turbine Blade

Salazar, Santiago 01 January 2010 (has links)
Clearances between gas turbine casings and rotating blades is of quite importance on turbo machines since a significant loss of efficiency can occur if the clearances are not predicted accordingly. The radial thermal growths of the blade may be over or under predicted if poor assumptions are made on calculating the metal temperatures of the surfaces exposed to the fluid. The external surface of the blade is exposed to hot gas temperatures and it is internally cooled with air coming from the compressor. This cold air enters the radial channels at the root of the blade and then exists at the tip. To obtain close to realistic metal temperatures on the blade, the Conjugate Heat Transfer (CHT) approach would be utilized in this research. The radial thermal growth of the blade would be then compared to the initial guess. This work focuses on the interaction between the external boundary conditions obtained from the commercial Computational Fluid Dynamics software package CFX, the internal boundary conditions along the channels from a 1D flow solver proprietary to Siemens Energy, and the 3D metal temperatures and deformation of the blade predicted using the commercial Solid Mechanics software package ANSYS. An iterative technique to solve CHT problems is demonstrated and discussed. The results of this work help to highlight the importance of CHT in predicting metal temperatures and the implications it has in other aspect of the gas turbine design such as the tip clearances.

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