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Approximate Solutions for Struts Supported by an Elastic Foundation

Approximate Solutions for Struts Supported by an Elastic Foundation THE case of a strut supported by a number of elastic supports is one that frequently occurs, in structural analysis an obvious example from monocoque fuselages is that of the longeron loaded in compression and supported at intervals by frames which deform elastically under lateral load from the longeron. From a stressing point of view, the criterion for strut strength is not usually the critical buckling load but the load required to give maximum allowable stress under conditions of initial end eccentricity or initial free deflexion of one or more of the supports. In the case of a simple unsupported strut, for instance, it is the application of eccentrically applied end load that provides the strength criterion, and not the critical buckling under axial end load. Although the determination of the critical buckling load is interesting from an analytical point of view, and is also useful as a standard of reference, solutions of the stress conditions have more practical significance for the stress engineer. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Approximate Solutions for Struts Supported by an Elastic Foundation

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb031651
Publisher site
See Article on Publisher Site

Abstract

THE case of a strut supported by a number of elastic supports is one that frequently occurs, in structural analysis an obvious example from monocoque fuselages is that of the longeron loaded in compression and supported at intervals by frames which deform elastically under lateral load from the longeron. From a stressing point of view, the criterion for strut strength is not usually the critical buckling load but the load required to give maximum allowable stress under conditions of initial end eccentricity or initial free deflexion of one or more of the supports. In the case of a simple unsupported strut, for instance, it is the application of eccentrically applied end load that provides the strength criterion, and not the critical buckling under axial end load. Although the determination of the critical buckling load is interesting from an analytical point of view, and is also useful as a standard of reference, solutions of the stress conditions have more practical significance for the stress engineer.

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Jul 1, 1948

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