Numerical modeling of wave propagation in functionally graded materials using time-domain spectral Chebyshev elements
Spectral time-domain Chebyshev element is developed for wave propagation in FGMs. Phase velocity dispersion properties of FGM structures are studied using one and two layers of 5th order spectral elements. Different excitation frequencies in a wide range of 28350 kHz are analyzed. Impact stress wave propagation through the thickness of FGM specimen is investigated.
functionally graded materials lamb wave propagation chebyshev polynomials spectral finite element finite element method