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Lord-Shulman theory under the dependence of the modulus of elasticity on the reference temperature in two-dimensional generalized thermoelasticity
Faculty
Science
Year:
2002
Type of Publication:
Article
Pages:
1027-1045
Authors:
Othman, MIA
DOI:
10.1080/01495730290074621
Journal:
JOURNAL OF THERMAL STRESSES TAYLOR \& FRANCIS INC
Volume:
25
Research Area:
Thermodynamics; Mechanics
ISSN
ISI:000178604100002
Keywords :
Lord-Shulman theory under , dependence , , modulus , elasticity
Abstract:
The model of the equations of generalized thermoelasticity based on Lord-Shulman theory in an isotropic elastic medium under the dependence of the modulus of elasticity on the reference temperature is established. The normal mode analysis is used to obtain the expressions for the temperature, the horizontal component of displacement, and thermal stress. The resulting formulation is applied to two different concrete problems. The first concerns the case of a heated punch moving across the surface of a semi-infinite thermoelastic half-space subject to appropriate boundary conditions. The second deals with a thick plate subject to a time-dependent heat source on each face. Numerical results are illustrated graphically for each problem considered. Comparisons are made with the results obtained in the case of temperature independence of the modulus of elasticity.
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