Results 151 to 160 of about 3,044 (187)

THERMOELASTIC AND ELASTOPLASTIC EFFECTS MEASURED BY MEANS OF A STANDARD THERMOCAMERA

Experimental Techniques, 2004
It is well known that a metallic specimen changes its temperature when it is subjected to cyclic stresses. If the strain is elastic, the temperature change is produced by two main effects: elastoplasticity and thermoelasticity. The first phenomenon is due to microplasticity and energy dissipation inside a material that causes the conversion of ...
A. L. Audenino, V. Crupi, ZANETTI, Elisabetta   +2 more
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Effect of generalized thermoelasticity materials with memory

Structural Engineering and Mechanics, 2007
Many works have been done in classical theory of thermoelasticity in materials with memory by researchers like Nunziato, Chen and Gurtine and many others. No work is located in generalized thermoelasticity regarding materials with memory till date.
Arup Baksi, Bidyut Kumar Roy, Rasajit Kumar Bera   +2 more
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Effect of microtemperatures for micropolar thermoelastic bodies

Structural Engineering and Mechanics, 2017
In this paper we investigate the theory of micropolar thermoelastic bodies whose micro-particles possess microtemperatures. We transform the mixed initial boundary value problem into a temporally evolutionary equation on a Hilbert space and after that we prove the existence and uniqueness of the solution.
Marin Marin, Dumitru Baleanu, Sorin Vlase   +2 more
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Low-temperature thermoelastic effects in glasses

Philosophical Magazine B, 1984
Abstract Thermoeiastic effects have been studied in vitreous silica and in polymethyl methacrylate (PMMA) by measuring the temperature response of a sample subjected to strain. Both ramp and sinusoidal strains were used, the latter covering the frequency range 0·01 to 10 Hz, in the temperature range 0·5 to 10 K.
O. B. Wright, W. A. Phillips
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Thermoelastic Effect in Niobium at the Superconducting Transition

Physical Review Letters, 1982
An abrupt decrease in acoustic loss Q/sup -1/ has been observed in flexural modes of polycrystalline Nb disk samples on cooling through the superconducting transition temperature T/sub c/. High-resolution measurements on a 1.6-kHz mode of one sample showed a 30% decrease in Q/sup -1/ in a 20-mK temperature interval.
D. G. Blair, J. Ferreirinho
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Specific features of the thermoelastic effect in polymers

Thermochimica Acta, 1994
Abstract An adiabatic uniaxial elastic tension in non-oriented polymers (polyethylene, polypropylene) has been found to cause a cooling that is sharper than linear (with respect to stress σ), and close to the quadratic dependence on σ. In this paper we suggest a thermodynamic derivation of the Δ T (σ) dependence (where Δ T is the change in ...
V.P. Volodin, A.I. Slutsker
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Effect of anisotropy on thermoelastic contact problem

Applied Mathematics and Mechanics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Barik, Sakti Pada, Kanoria, M., Chaudhuri, P. K.   +2 more
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THERMOELASTICITY AND HEAT CONDUCTION WITH MEMORY EFFECTS

Journal of Thermal Stresses, 1982
Abstract The thermodynamical foundations of generalized thermoelasticity formulated by Lord and Shulman are reviewed and memory effects on the heat flux are generalized. An existence and uniqueness theorem for the evolution integro-differential equations is obtained using semi-group theory.
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Effect of geometry on thermoelastic damping in MEMS

SPIE Proceedings, 2007
The effects of geometry on the energy dissipation induced by thermoelastic damping in MEMS resonators are investigated numerically using a finite element formulation. The perturbation analysis is applied to derive a linear eigenvalue equation for the exponentially decaying rate of the mechanical oscillation.
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Scale effects in finite elasticity and thermoelasticity

2006
The main focus of this thesis is on investigating the minimum size of the Representative Volume Element (RVE) and finite-size scaling of properties of random linear and nonlinear elastic composites. The RVE is a material volume which accurately describes the overall behavior of a heterogeneous solid, and is the core assumption of continuum mechanics ...
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