THERMAL SHOCK IN A VISCOELASTIC HALF-SPACE

Thermal shock due to sudden heating of the bounding surface of a viscoelastic half-space is discussed. Coupling of the temperature and strain fields has been taken into account, and the effects of thermal relaxation on the shock propagation have also been considered. The linear standard model has be...

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Bibliographic Details
Published in:Journal of thermal stresses 1982-07, Vol.5 (3-4), p.365-375
Main Authors: Misra, J. C., Samanta, S. C.
Format: Article
Language:English
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Summary:Thermal shock due to sudden heating of the bounding surface of a viscoelastic half-space is discussed. Coupling of the temperature and strain fields has been taken into account, and the effects of thermal relaxation on the shock propagation have also been considered. The linear standard model has been used to represent the viscoelastic behavior of the solid in shear which is elastic in hulk deformation. The analysis, although valid for small times, shows that the stress and temperature fields have discontinuities at two points at a given instant of lime. It is further noted that attenuation takes place more rapidly than in the corresponding case of an elastic continuum. The stress and temperature fields are the result of superposition of two shock waves: one is mechanical in origin, the other is due to thermal relaxation. An estimate of the finite speed of the heat signal is also obtained for a specific case.
ISSN:0149-5739
1521-074X
DOI:10.1080/01495738208942156