Abstract
In this paper, a mode-III strip-saturation model is proposed for a piezoelectric ceramic plate weakened by two equal collinear, semi-permeable hairline cracks. A mathematical model is obtained using Stroh’s formalism and solved using matrix Hilbert problem. Analytic closed form expressions are derived for various fracture parameters such as crack sliding displacement, crack opening potential drop, field intensity factor and energy release rate. An illustrative numerical case study is presented for impermeable, semi-permeable and permeable crack face boundary conditions for different piezoceramics. The results obtained are presented graphically, discussed and concluded. It is observed that the model proposed is capable of crack arrest under small-scale electric saturation.
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