Hybrid compliance-stiffness matrix method for stable analysis of elastic wave propagation in multilayered anisotropic media. 2006

Eng Leong Tan
Nanyang Technological University, South Spine, Block S2, Nanyang Avenue, Singapore 639798, Singapore. eeltan@ntu.edu.sg

This paper presents the hybrid compliance-stiffness matrix method for stable analysis of elastic wave propagation in multilayered anisotropic media. The method utilizes the hybrid matrix of each layer in a recursive algorithm to deduce the stack hybrid matrix for a multilayered structure. Like the stiffness matrix method, the hybrid matrix method is able to eliminate the numerical instability of transfer matrix method. By operating with total stresses and displacements, it also preserves the convenience for incorporating imperfect or perfect interfaces. However, unlike the stiffness matrix, the hybrid matrix remains to be well-conditioned and accurate even for zero or small thicknesses. The stability of hybrid matrix method has been demonstrated by the numerical results of reflection and transmission coefficients. These results have been determined efficiently based on the surface hybrid matrix method involving only a subset of hybrid submatrices. In conjunction with the recursive asymptotic method, the hybrid matrix method is self-sufficient without hybrid asymptotic method and may achieve low error level over a wide range of sublayer thickness or the number of recursive operations.

UI MeSH Term Description Entries

Related Publications

Eng Leong Tan
September 2002, The Journal of the Acoustical Society of America,
Eng Leong Tan
April 2017, IEEE transactions on ultrasonics, ferroelectrics, and frequency control,
Eng Leong Tan
May 2015, Journal of the Optical Society of America. A, Optics, image science, and vision,
Eng Leong Tan
November 1989, Physical review. A, General physics,
Eng Leong Tan
February 2013, Ultrasonics,
Eng Leong Tan
August 1982, Applied optics,
Eng Leong Tan
June 2011, Physical review. E, Statistical, nonlinear, and soft matter physics,
Eng Leong Tan
February 2011, Biomechanics and modeling in mechanobiology,
Copied contents to your clipboard!