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Thermoelastic damping in a micro-beam based on the memory-dependent generalized thermoelasticity

Waves in Random and Complex Media, 2020
The thermoelastic damping in a micro-beam of rectangular cross-section is studied using the Euler–Bernoulli beam theory incorporating Lord and Shulman's theory of generalized thermoelasticity with ...
Ya-Wei Wang   +2 more
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Thermoelastic Damping at the Boundary between Dissimilar Solids

Journal of Applied Physics, 1957
The problem of thermoelastic damping at the boundary between dissimilar solids is investigated for the case of small, sinusoidal, longitudinal disturbances of long-wavelength propagating normally through the interface. The relevant equations are derived from thermodynamic considerations, and it is found that the mechanical energy absorption per unit ...
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Thermoelastic Damping in Nanomechanical Resonators Based on Two-Temperature Generalized Thermoelasticity Theory

Journal of Thermal Stresses, 2015
This work is concerned with the study of the thermoelastic damping of nanobeam resonators in the context of the two-temperature generalized thermoelasticity theory. An explicit formula of thermoelastic damping has been derived. Influences of the beam height, the relaxation time parameter, the two-temperature parameter and the isothermal value of ...
Hamdy M. Youssef, N. A. Alghamdi
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Damping in micro-scale generalized thermoelastic circular plate resonators

Ultrasonics, 2011
The out-of-plane vibrations of a generalized thermoelastic circular plate are studied under different environmental temperature, plate dimensions and boundary conditions. The analytical expressions for thermoelastic damping of vibration and phase velocity of circumferential surface wave modes are obtained.
J N, Sharma, R, Sharma
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A study of thermoelastic damping in micromechanical resonators under unified generalized thermoelasticity formulation

Noise & Vibration Worldwide, 2019
In this article, a unified formulation for the generalized coupled thermoelasticity theories by employing an appropriate system of partial differential equations as the governing system is presented to investigate thermoelastic damping of a microbeam resonator.
Roushan Kumar, Ravi Kumar
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Thermoelastic Damping in Asymmetric Three-Layered Microbeam Resonators

Journal of Applied Mechanics, 2016
Thermoelastic damping (TED) has been recognized as a significant mechanism of energy loss in vacuum-operated microresonators. Three-layered microbeams are common elements in many microresonators. However, only the model for TED in the three-layered microbeams with symmetric structure has been developed in the past.
Wanli Zuo   +3 more
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Thermodynamics of unconventional thermoelastic damping in auxetic media

physica status solidi (b), 2013
The paper deals with the extended thermodynamical model of thermoelastic interactions in nonlinear elastic solids of anomalous mechanical properties (negative Poisson's ratio materials) including energy dissipation during the thermoelastic damping phenomenon. The model has been based, among others, on Murnaghan's free energy. Numerical simulations show
B.T. Maruszewski   +2 more
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Thermoelastic Damping in Laminated Composite Circular Microplate Resonators

Advanced Materials Research, 2013
High quality factor is an essential requirement in the design of microsensors used for sensing and communications applications. In previous works, some analytical models have been developed for thermoelastic damping in monolayer structure and multi-layered beam.
Wan Li Zuo, Xu Dong Liu, Pu Li
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Thermoelastic damping in layered micromechanical resonators

2009
The effect of coatings and superficial oxide on the behavior of micro resonators deserves attention in view of its impact on real-life devices. To this purpose, in this work we focus on the thermoelastic damping in layered thin resonating beams. Including the effect of thermally imperfect interfaces, the quality factor is analytically computed.
ARDITO, RAFFAELE, COMI, CLAUDIA
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