Results 91 to 100 of about 5,618 (212)

Well-posedness and exponential stability for a linear damped Timoshenko system with second sound and internal distributed delay

open access: yesElectronic Journal of Differential Equations, 2014
In this article we consider one-dimensional linear thermoelastic system of Timoshenko type with linear frictional damping and a distributed delay acting on the displacement equation. The heat flux of the system is governed by Cattaneo's law.
Tijani A. Apalara
doaj  

Design guidelines for efficient thermoelastic harvesting of low-grade waste heat

open access: yesEnergy Conversion and Management: X
Today, a substantial fraction of the energy used for industrial and domestic processes is wasted as heat, which contributes to global warming. Although recuperation of waste heat at high temperatures is already feasible and applied, this remains a ...
Bruno Neumann, Sebastian Fähler
doaj   +1 more source

Modelling of Generalised Thermoelastic Wave Propagation of Multilayer Material under Thermal Shock Behaviour

open access: yesShock and Vibration, 2017
This paper describes a time-discontinuous Galerkin finite element method (DGFEM-βc) for the generalised thermoelastic problem of multilayer materials subjected to a transient high-frequency heat source.
Pan Guo, Wen-Hua Wu, Jun Zhao
doaj   +1 more source

High temperature dynamic modulus and damping of aluminum and titanium matrix composites [PDF]

open access: yes
Dynamic modulus and damping capacity property data were measured from 20 to over 500 C for unidirectional B/Al (1100), B/Al (6061), B/SiC/Al (6061), Al2O3/Al, SiC/Ti-6Al-4V, and SiC/Ti composites.
Dicarlo, J. A., Maisel, J. E.
core   +1 more source

Modeling and Analysis of Thermoelastic Damping in a Piezoelectro-Magneto-Thermoelastic Imperfect Flexible Beam

open access: yesMathematics
This research addresses the phenomena of thermoelastic damping (TED) and frequency shift (FS) of a thin flexible piezoelectro-magneto-thermoelastic (PEMT) composite beam. Its motion is constrained by two linear flexible springs attached to both ends. The
Ayman M. Alneamy   +2 more
doaj   +1 more source

Global existence and stability results for a nonlinear Timoshenko system of thermoelasticity of type III with delay

open access: yesBoundary Value Problems, 2018
In this paper, we consider a nonlinear thermoelastic system of Timoshenko type with delay. It is known that an arbitrarily small delay may be the source of instability.
Jianghao Hao, Jing Wei
doaj   +1 more source

Direct Observation of Broadband Coating Thermal Noise in a Suspended Interferometer

open access: yes, 2005
We have directly observed broadband thermal noise in silica/tantala coatings in a high-sensitivity Fabry-Perot interferometer. Our result agrees well with the prediction based on indirect, ring-down measurements of coating mechanical loss, validating ...
Abromovici   +31 more
core   +1 more source

Energy decay in thermoelasticity type III with viscoelastic damping and delay term

open access: yesElectronic Journal of Differential Equations, 2012
In this article, we consider a thermoelastic system of type III with a viscoelastic damping and internal delay. We use the multiplier method to prove, under suitable assumptions, general energy decay results from which the exponential and polynomial ...
Tijani A. Apalara   +2 more
doaj  

Elastic and thermodynamic properties of the shape-memory alloy AuZn

open access: yes, 2001
The current work reports on the elastic shear moduli, internal friction, and the specific heat of the B2 cubic ordered alloy AuZn as a function of temperature. Measurements were made on single-crystal and polycrystalline samples using Resonant Ultrasound
A. Migliori   +8 more
core   +1 more source

Boundary stabilization of memory-type thermoelastic systems

open access: yesElectronic Journal of Differential Equations, 2013
In this article we consider an n-dimentional thermoelastic system with a viscoelastic damping localized on a part of the boundary. We establish an explicit and general decay rate result that allows a larger class of relaxation functions and ...
Muhammad I. Mustafa
doaj  

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