Fracture mechanics associated with non-classical heat conduction in thermoelastic media

Baolin Wang, Jiecai Han

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This paper studies the thermoelastic fracture in a solid under non-classical Fourier heat conduction. The temperature field and the associated thermal stresses are solved by the dual integral equation technique. Both thermally insulated crack and heated crack are considered. It is found that the crack tip thermal stress is singular and can be expressed in terms of the thermal stress intensity factor in a closed-form. Numerical results show that the crack considerably amplifies the local thermal stresses, confirming the significance of the effect of non-classical heat conduction on the thermoelastic fracture mechanics of materials.
Original languageEnglish
Pages (from-to)493-504
Number of pages12
JournalScience China: Physics, Mechanics and Astronomy
Volume55
Issue number3
DOIs
Publication statusPublished - Mar 2012
Externally publishedYes

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fracture mechanics
thermal stresses
conductive heat transfer
cracks
stress intensity factors
crack tips
integral equations
temperature distribution

Cite this

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Fracture mechanics associated with non-classical heat conduction in thermoelastic media. / Wang, Baolin; Han, Jiecai.

In: Science China: Physics, Mechanics and Astronomy, Vol. 55, No. 3, 03.2012, p. 493-504.

Research output: Contribution to journalArticleResearchpeer-review

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AB - This paper studies the thermoelastic fracture in a solid under non-classical Fourier heat conduction. The temperature field and the associated thermal stresses are solved by the dual integral equation technique. Both thermally insulated crack and heated crack are considered. It is found that the crack tip thermal stress is singular and can be expressed in terms of the thermal stress intensity factor in a closed-form. Numerical results show that the crack considerably amplifies the local thermal stresses, confirming the significance of the effect of non-classical heat conduction on the thermoelastic fracture mechanics of materials.

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