Abstract
Thermo-mechanical stress field equations are developed for a mixed-mode crack propagating at constant velocity in homogeneous and isotropic materials using an asymptotic approach along with displacement potentials. Asymptotic temperature field equations are first developed for steady state temperature conditions using insulated crack-face boundary conditions. These temperature field equations are later used to derive the first three terms of thermo-mechanical stress field equations for a steady state propagating mixed-mode crack. Using these thermo-mechanical stress fields, various components of the stresses are developed, and the effects of temperature on these stress components are discussed. Further, strain energy density and the circumferential stress criteria are employed to study the effect of temperature and the crack-tip velocity on crack growth direction.
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Kidane, A., Chalivendra, V.B. & Shukla, A. Thermo-mechanical stress fields and strain energy associated with a mixed-mode propagating crack. Acta Mech 215, 57–69 (2010). https://doi.org/10.1007/s00707-010-0305-x
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DOI: https://doi.org/10.1007/s00707-010-0305-x