Abstract
This paper focuses on aspects of fracture mechanics of interface cracks in anisotropic bimaterials. In this case there is a coupling of all three crack-tip fracture modes in the natural interface-crack coordinate system, whereas in the isotropic case, mode 3 is decoupled from modes 1 and 2. This paper intends to shed light on how to interpret the crack-tip fields which are given explicitly along the interface in terms of two (real 3 × 3) bimaterial matrices W and D. A matric function Y is defined in terms of W and D which determines the coupling and oscillations in the cracktip fields. Explicit expressions for the crack-tip fields and the associated stress intensity factors are given as well as for the energy release rate. The finite (Griffith) interface crack is considered in detail.
Original language | English |
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Pages (from-to) | 422-431 |
Number of pages | 10 |
Journal | Journal of Applied Mechanics, Transactions ASME |
Volume | 60 |
Issue number | 2 |
DOIs | |
State | Published - Jun 1993 |