Elastic Wave Propagation in Inhomogeneous Bars of Several Sections

[+] Author and Article Information
J. E. Wade

Air Force Flight Dynamics Laboratory, Wright-Paterson AFB, Ohio

P. J. Torvik

Department of Mechanics, Air Force Institute of Technology, Wright-Paterson AFB, Ohio

J. Appl. Mech 40(4), 1050-1054 (Dec 01, 1973) (5 pages) doi:10.1115/1.3423124 History: Received June 01, 1972; Revised March 01, 1973; Online July 12, 2010


An approximate method is given for analyzing the propagation of low-frequency wave trains in prismatic bars of cross sections which can be approximated through subdivision into rectangular elements. The method may be applied to inhomogeneous (composite) bars, for it is not required that each such element have the same properties. Results from the new method compare favorably with results previously obtained for a rectangular bar. Frequency spectra for several composite bars, including a bar of thick angle section, are given.

Copyright © 1973 by ASME
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