Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 91 for “"Thermoelastic"”.
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A Study of the Transition From Non-Thermoelastic to Thermoelastic Behavior in Iron - Platinum Martensites
Made available in DSpace on 2014-12-14T16:00:33Z (GMT). No. of bitstreams: 1 7715029.pdf: 12544108 bytes, checksum: d3ff69c00231af04955c2daabf576f6e (MD5) Previous issue date: 1977
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Thermoelastic and dynamical properties of perfluoroethane
… velocity in the bcc phase was made, and a set of thermoelastic properties, including longitudinal and transverse velocities of sound, adiabatic and isothermal compressibility, elastic Debye temperature, Gruneisen parameter, heat capacity at constant volume, intramolecular and librational …
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Thermoelastic and dynamical properties of C2F6
… velocity in the bee phase was made, and a set of thermoelastic properties, including longitudinal and transverse velocities of sound, adiabatic and isothermal compressibility, elastic Debye temperature, Grtineisen parameter, heat capacity at constant volume, intramolecular and librational …
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Acceleration waves in constrained thermoelastic materials
… and growth of acceleration waves in isotropic thermoelastic media subject to a broad class of thermomechanical constraints. The work is based on an existing thermodynamic theory of constrained thermoelastic materials presented by Reddy (1984) for both definite and non- conductors, but we differ …
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Thermoelastic stress analysis of laminated composite materials
In this work thermoelastic stress analysis (TSA) is used to obtain quantitative stress/strain data from a variety of multi-directional laminated composites. In order to interpret the thermoelastic signal correctly the source of the thermoelastic response has been investigated in detail. In this …
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On strain wave propagation in thermoelastic media
A complete solution of thermoelastic dilatational waves in an elastic, heat conducting, homogeneous, and isotropic medium has been obtained for both the steady and unsteady states. Discussions of the solution for a wide range of frequencies and various values of the coefficient of rise (or decay) …
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Boundary Value Problems in Rectilinearly Anisotropic Thermoelastic Solids
… a Griffith crack (or cracks) in an anisotropic thermoelastic solid. The thermoelastic field, in such materials, when the infinitesimal theory is employed, is governed by a set of elliptic partial differential equations. The general solution of these equations is expressed in terms of arbitrary …
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Design of meta-materials with novel thermoelastic properties
The development of new techniques in micro-manufacturing in recent years has enabled the fabrication of material microstructures with essentially arbitrary designs, including those with multiple constituent materials and void space in nearly any geometry. With an essentially open design space, the …
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Design sensitivity analysis for nonlinear dynamic thermoelastic systems
… analysis of linear and nonlinear dynamic thermoelastic systems. The variation of a general design functional is expressed in explicit form with respect to variations of the design quantities, i.e. material properties, applied loads, prescribed boundary conditions, initial conditions, and …
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Finite element model of thermoelastic damping in MEMS
… germanium causes those devices to experience thermoelastic damping of a greater magnitude than the germanium-free devices. The amount of damping exhibited is found to be well explained by existing analytical expressions for thermoelastic dissipation in a beam model. The governing equations of …
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Coupled Thermoelastic Theory in Cylindrical Geometry with Cylindrical Symmetry
Made available in DSpace on 2017-07-06T18:48:25Z (GMT). No. of bitstreams: 2 Hatch_Steven_W_MS.pdf: 20179328 bytes, checksum: cae9e40097cce248db6aabaa58f81d0e (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1980
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Elastic and Thermoelastic Stresses in Biomedical Sensors and Bicomponent Fibers
… systems are strongly influenced by elastic and thermoelastic stresses. This dissertation examines these stresses within a unified framework spanning two areas: the development of composite biomedical sensors and the analysis of bicomponent fibers. To address the clinical need to prevent medical …
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Identification of damage in composite materials using thermoelastic stress analysis
… composite materials has been<br/>achieved using Thermoelastic Stress Analysis (TSA). The TSA technique provides fullfield<br/>data which is collected in a non-contacting and real time manner. The damage<br/>assessment methodology proposed requires a means of calibrating and …
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Crystallography of the Thermoelastic Martensitic Transformation in Nickel - Aluminum Alloys
Made available in DSpace on 2014-12-14T16:00:28Z (GMT). No. of bitstreams: 1 7606716.pdf: 6061563 bytes, checksum: 69e78d303a7b4f3adeaaf4ce6ca2d7b7 (MD5) Previous issue date: 1975
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Some Aspects of Transient Thermoelastic Problems Obtained by an Iterativeprocedure
Made available in DSpace on 2014-12-08T23:01:00Z (GMT). No. of bitstreams: 1 6402992.pdf: 9423698 bytes, checksum: 4940a104b56b0c022da3d6f42b8c6c3d (MD5) Previous issue date: 1963
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Analysis and Approximation of Viscoelastic and Thermoelastic Joint-Beam Systems
… models, including Kelvin-Voigt, Boltzmann, and thermoelastic damping. Approximation schemes will also be introduced. Finally, we look at optimal control for the Kelvin-Voigt model using a linear feedback regulator.
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Delamination dynamics and vibrothermographic-thermoelastic evaluation of advanced composite materials
During vibrothermographic experimental testing of damaged composite plates, frequency dependent heat generation phenomena were observed. Local hot spots were formed around imperfection areas especially delaminations. Heat generation was also found to relate to the crack size. In order to explain …
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Development of constitutive models for thin thermoelastic interphase in composite materials
Composite materials consist of two or more constituent phases with distinct geometries and physical properties. These materials incorporate reinforcements that enhance their overall thermo-mechanical performance. At the micro-mechanical scale, a distinct interphase forms between the constituent …
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