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논문 기본 정보

자료유형
학술저널
저자정보
Ezzat, M. (Department of Mathematics, Faculty of Education, University of Alexandria) Zakaria, M. (Department of Mathematics, Faculty of Education, University of Alexandria) Abdel-Bary, A. (Department of Mathematics, Faculty of Education, University of Alexandria)
저널정보
한국전산응용수학회 Journal of applied mathematics & computing Journal of applied mathematics & computing 제14권 제1호
발행연도
2004.1
수록면
193 - 212 (20page)

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A new model of generalized thermoelasticity equations for isotropic media with temperature-dependent mechanical properties is established. The modulus of elasticity is taken as a linear function of reference temperature. The present model is described both generalizations, Lord Shulman (L-S) theory with one relaxation time and Green-Lindsay (G-L) with two relaxation times, as well as the coupled theory, instantaneously. The method of the matrix exponential, which constitutes the basis of the state space approach of modern control theory, applied to two-dimensional equations. Laplace and Fourier integral transforms are used. The resulting formulation is applied to a problem of a thick plate subject to heating on parts of the upper and lower surfaces of the plate that varies exponentially with time. Numerical results are given and illustrated graphically for the problem considered. A comparison was made with the results obtained in case of temperature-independent modulus of elasticity in each theory.

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