An analysis of elastic wave propagation in inhomogeneous solids using the Fourier method

Fourier 방법을 이용한 불균일 고체의 탄성파전달해석

Wave propagation in inhomogeneous elastic media is studied by using the Fourier method, where the spatial derivatives are computed by the FFT algorithm, while the time derivatives are expanded into the second order finite different expansion. For numerical examples, wave propagation in the layered half-plane are investigated. The comparisons of numerical and analytic results shows good agreement.