Refinements in the Approximate Analysis of Web-Stiffened Sandwich Structures

[+] Author and Article Information
Y. N. Chen, F. Cicero, J. Kempner

Department of Aerospace Engineering and Applied Mechanics, Polytechnic Institute of Brooklyn, Brooklyn, N. Y.

J. Appl. Mech 40(4), 992-996 (Dec 01, 1973) (5 pages) doi:10.1115/1.3423200 History: Received August 01, 1971; Revised April 01, 1973; Online July 12, 2010


Presented in this work is a method of construction of approximate functions in connection with the energy formulation of certain eigenvalue problems of web-stiffened sandwich structures. The construction is based upon the method of Young together with a group of fundamental functions deduced from Timoshenko’s flexural equations for elastic beams. The analysis is exemplified and numerically tested by the eigenvalue problems of free vibrations and buckling of one-dimensional sandwich structures. Results indicate that the present method possesses advantages over similar constructions oriented from the classical flexural normal modes of Bernoulli-Euler.

Copyright © 1973 by ASME
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