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Thermal weight functions for bi-material interface crack system using energy principles

Khandelwal, Ratnesh and Kishen, JM Chandra (2008) Thermal weight functions for bi-material interface crack system using energy principles. In: International Journal of Solids and Structures, 45 (24). pp. 6157-6176.

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In this study, Betti’s reciprocal theorem and the principle of superposition are used to obtain weight functions in a two-dimensional bi-material interface crack system for any loading, in general and thermal loading, in particular. It is shown that the general expression of weight functions for bi-materials interface crack problems is of the same type as that found in a homogeneous mixed mode loading case. Furthermore, a computational approach has been developed for calculation of thermal stress intensity factors for bi-material interface cracks subjected to thermal loading under quasi-static uncoupled thermo-elasticity assumption. The thermal weight function (TWF) expression and computational scheme have been validated using three examples given in the available literature.

Item Type: Journal Article
Publication: International Journal of Solids and Structures
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Bi-material interface;Weight function;Reciprocal theorem; Stress intensity factors;Thermal load.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 30 Oct 2009 07:04
Last Modified: 19 Sep 2010 04:57
URI: http://eprints.iisc.ac.in/id/eprint/17568

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