Abstract
An oblique edge crack in an orthotropic thermoelastic solid under thermal loading is analyzed, and thermally insulated and conductive cracks are considered. The thermal edge crack problem is formulated by the transformed function representation for linear thermoelasticity. The stress intensity factors and energy release rate induced by incompatible thermal strains are obtained, which are dependent on one geometric parameter and three orthotropic material parameters. The explicit dependence on one elastic orthotropic parameter is obtained by the orthotropy rescaling technique, and the influence of the other three parameters is examined numerically. The important influence of the material parameters on the stress intensity factors and energy release rate is discussed.
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