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RESEARCH PAPERS

Remarks on the Static and Dynamic Imperfection-Sensitivity of Nonsymmetric Structures

[+] Author and Article Information
Isaac Elishakoff

Department of Aerospace Engineering, Delft University of Technology, Delft, The Netherlands

J. Appl. Mech 47(1), 111-115 (Mar 01, 1980) (5 pages) doi:10.1115/1.3153586 History: Received February 01, 1979; Revised July 01, 1979; Online July 21, 2009

Abstract

The simple static and dynamic buckling model (the three-hinge rigid-rod system, constrained laterally by a nonlinear spring) originally proposed by Budiansky and Hutchinson, is modified so that the force of the spring includes both quadratic and cubic terms. Expressions are given for the buckling load of the imperfect structure as function of the imperfection. These formulas generalize the classical expressions for the static buckling load (due to Koiter), and for the dynamic buckling load (due to Budiansky and Hutchinson) for symmetric or asymmetric structures, to nonsymmetric ones.

Copyright © 1980 by ASME
Topics: Force , Stress , Hinges , Buckling , Springs
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