Abstract
A Griffith crack lying along the interface between anisotropic elastic solids is analysed. Explicit solutions for the displacement and stress fields are obtained when the crack-tip fields are non-oscillatory ; i.e. the condition W = 0 is satisfied as derived by Qu and Bassani (J. Mech. Phys. Solids 37, 417-433, 1989). In this case, the stress intensity factors are real and the three fracture modes are separable at the crack tip. For interfaces formed by misorienting identical anisotropic solids through a relative tilt, this condition is satisfied if the in-plane and anti-plane deformations decouple in the interface-crack coordinates. Complete crack-tip stress fields are calculated for FCC bicrystals satisfying the decoupling condition. Based on Schmid's law, the small-scale-yielding plastic zones surrounding the crack tip are also estimated.
| Original language | English |
|---|---|
| Pages (from-to) | 435-453 |
| Number of pages | 19 |
| Journal | Journal of the Mechanics and Physics of Solids |
| Volume | 37 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1989 |
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