Analysis and Prediction of the Dynamic Antiplane Characteristics of an Elastic Wedge-Shaped Quarter-Space Containing a Circular Hole

Based on the wave function expansion method, dynamic antiplane characteristics of a wedge-shaped quarter-space containing circular hole are studied in complex coordinate system. The medium is decomposed into two subregions along virtual boundary using region decomposition method. scattering field subregion I constructed by mirror and standing II fractional Bessel function. According to continuity conditions at stress-free hole, unknown coefficients fields obtained Fourier integral transform, analytical solution stress concentration factor (DSCF) then obtained. Through parametric analysis, effects incident frequency, geometry wedge, corner slope DSCF discussed. results show that when SH-wave horizontally incidence high frequencies, can be significantly changed introducing slope. Moreover, high, maximum amplified about 1.2 times. Finally, back propagation (BP) neural network prediction model established, coefficient regression found reach more than 0.99.