Abstract
A mode-III problem of strip-induction-saturation model is considered for a transversely isotropic piezoelectromagnetic strip weakened by a semipermeable non-centric crack. Three cases are considered: when the developed induction zone is larger, smaller and equal to the saturation zone. Fourier integral transform is used to reduce the problem into Fredholm integral equations of the second kind and solve numerically. Closed-form analytic expressions are derived for developed zones, field intensity factors, crack sliding displacement, crack opening induction drop, crack opening potential drop, local and global energy release rates. An illustrative numerical example is considered for a poled cracked narrow BaTiO3–CoFe2O3 strip to show the effect of prescribed loading combinations and developed zone length on the aforementioned fracture parameters. Results obtained are presented graphically, analyzed and concluded.
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