Abstract
A hybrid method is presented in this paper to study the scattering of slow flexural waves by a finite through-crack in an infinite elastic plate. The modeling is achieved by dividing the domain into two regions, an interior region which consists of the crack and a finite region of the plate around the crack, and an unbounded exterior region. The interior region is modeled by using crack-tip singularity elements and Mindlin type plate bending elements. The exterior region is represented by wave function expansions. Numerical results are presented for stress intensity factors K I and K II for various values of frequency, ratio of semi crack length to plate thickness and angle of incidence.
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