Singularity parametersε andκ for interface cracks in transversely isotropic piezoelectric bimaterials
Source abstract
Abstract
Two parameters,e andκ (Suoet al, 1992), are of key importance in fracture mechanics of piezoelectric material interfaces. In this paper, it is shown, for any transversely isotropic piezoelectric (TIP) bimaterial, that one of the two parameterse andκ always vanishes but the other one remains non-zero. Physically, it means that the non-oscillating crack-tip generalized stress field singularity exists for some TIP bimaterials (with vanishinge). Consequently, TIP bimaterials can be classified into two classes: one with vanishingκ performed crack tip generalized stress field oscillating singularity and the other one with vanishinge is independent from the oscillating singularity. Some numerical results fore andκ are given too.
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Research context
OpenAlex topics: Numerical methods in engineering · Fatigue and fracture mechanics · Ultrasonics and Acoustic Wave Propagation
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References (16)
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