Modal Analysis of Floquet Waves in Composite Materials

[+] Author and Article Information
W. H. Yang

Department of Applied Mechanics and Engineering Sciences, The University of Michigan, Ann Arbor, Mich.

E. H. Lee

Department of Applied Mechanics, Stanford University, Stanford, Calif.

J. Appl. Mech 41(2), 429-433 (Jun 01, 1974) (5 pages) doi:10.1115/1.3423305 History: Received March 01, 1973; Online July 12, 2010


A numerical method which admits discontinuous variable coefficients in the wave equation is employed for handling the wave propagation in composite materials. The resulting algebraic eigenvalue system is simplified by a rank–one matrix modification that reduces the computing time by at least one order of magnitude. The first five modes are accurately and efficiently computed as a demonstration of the method presented.

Copyright © 1974 by ASME
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