Dynamic anti-plane analysis for a semi-circular salient in an infinite elastic strip region

Dynamic incident anti-plane shearing (SH guided wave) is considered to calculate dynamic stress in an infinite strip region with a semi-salient. With the aid of series expansion method, the expression of SH guided wave is established, which satisfies the stress free condition on the upper and lower horizontal boundaries of the strip. The expression of standing wave is constructed by the means of Fourier series expansion. The expression of scattering wave is conducted based on repeated image superposition. Boundary conditions are solved by applying orthogonal function expansion technique. Results clarified the influence on the dynamic stress concentration factor under proper conditions.