On the spatial decay for the dynamical problem of thermo-microstretch elastic solids |
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Authors: | R Quintanilla |
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Affiliation: | Matemática Aplicada 2, Universidad Politècnica de Catalunya, E.T.S. d'Enginyers Industrials de Terrassa. UPC, Colón, 11. Terrassa 08222, Barcelona, Spain |
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Abstract: | This paper derives spatial decay bounds for a dynamical problem of thermo-microstretch elasticity defined on a semi-infinite cylindrical region. Previous results for isothermal elastodynamics and the parabolic heat equation lead us to suspect that the solution of the problem should tend to zero faster than a decaying exponential of the distance from the finite end of the cylinder. We prove that an energy expression is actually bounded above by a decaying exponential of a quadratic polynomial of the distance. |
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Keywords: | Thermoelastic theory of microstretch Saint-Venant's principle Spatial decay estimates |
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