Journal
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
Volume 25, Issue 5, Pages 409-441Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/mma.298
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We consider linear and non-linear thermoelastic systems in one space dimension where thermal disturbances are modelled propagating as wave-like pulses travelling at finite speed. This removal of the physical paradox of infinite propagation speed in the classical theory of thermoelasticity within Fourier's law is achieved using Cartaneo's law for heat conduction. For different boundary conditions, in particular for those arising in pulsed laser heating of solids, the exponential stability of the now purely, but slightly damped, hyperbolic linear system is proved. A comparison with classical hyperbolic-parabolic thermoelasticity is given. For Dirichlet type boundary conditions-rigidly clamped, constant temperature-the global existence of small, smooth solutions and the exponential stability are proved for a non-linear system. Copyright (C) 2002 John Wiley Sons, Ltd.
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