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Elastic Stability of Thin-Walled Arches subjected to Uniform Bending - Linear Bending Normal Strain Distribution -  

Ryu, Hyo-Jin (충남대학교 대학원 토목공학과)
Lim, Nam-Hyoung (충남대학교 공과대학 토목공학과)
Lee, Chin-Ok (충남대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.9, no.2, 2009 , pp. 11-15 More about this Journal
Abstract
This paper is concerned with the elastic buckling of thin-walled arches that are subjected to uniform bending. Nonlinear strain-displacement relations with the initial curvature are substituted into the second variation of the total potential energy to obtain the energy equation including initial curvature effects. The approximation for initial curvature effects that the bending normal strain distribution is linear across the cross section is applied consistently in the derivation process. The closed form solution is obtained for flexural-torsional buckling of arches under uniform bending and, it is compared with the previous theoretical results.
Keywords
Thin-walled arch; Curvature effects; Flexural-torsional buckling; Stability equation;
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