Abstract
A domain independent integral expression that is derived from the principle of virtual work and holds in curvilinear coordinates is used to derive the energy release rate for a penny-shaped crack in a linear piezoelectric solid. The virtual mechanical and electric displacement fields are chosen to allow variation of the crack tip position. Results for the energy release rate for a finite crack segment and point-wise show the effect of crack front curvature in a piezoelectric material.
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Eriksson, K. Energy Release Rates for the Penny-Shaped Crack in a Linear Piezoelectric Solid. International Journal of Fracture 116, 23–28 (2002). https://doi.org/10.1023/A:1022690513876
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DOI: https://doi.org/10.1023/A:1022690513876