Finite Element and Finite Difference Methods in Engineering

[+] Author and Article Information
N. Perrone

Office of Naval Research, Arlington, Va.

J. Mech. Des 100(1), 188-192 (Jan 01, 1978) (5 pages) doi:10.1115/1.3453885 History: Received February 14, 1977; Online October 21, 2010


By means of a simple example, a stretched string under transverse load, finite element and finite difference methods which are so widely used in engineering are illustrated. The finite element method is shown to be an essentially modified Raleigh-Ritz procedure. The finite difference technique is applied directly to the string differential equation; an energy related approach is also discussed. The manner in which a combination finite element/finite difference solution can be effected for the same physical problem is treated. Application of both the finite element and finite difference methods to more complex problems as well as selected programs and depositories are mentioned.

Copyright © 1978 by ASME
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