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http://dx.doi.org/10.7234/kscm.2007.20.6.015

Structural Behavior of Thin-Walled, Pretwisted Composite Beams  

Park, Il-Ju (건국대학교 대학원 항공우주정보시스템공학과)
Hong, Dan-Bi (한국항공우주연구원)
Jung, Sung-Nam (건국대학교 항공우주정보시스템공학과)
Publication Information
Composites Research / v.20, no.6, 2007 , pp. 15-20 More about this Journal
Abstract
In this work, the structural response of thin-walled, composite beams with built-in twist angles is analyzed using a mixed beam approach. The analytical model includes the effects of elastic couplings, shell wall thickness, and torsion warping. Reissner's semi-complimentary energy functional is used to describe the beam theory and also to deal with the mixed-nature in the beam kinematics. The bending and torsion related warpings introduced by the non-zero pretwist angles are derived in closed-form through the proposed beam formulation. The theory is validated with available literature and detailed finite element analysis results for rectangular solid section beams with elastic couplings. Very good correlation has been obtained for the cases considered.
Keywords
mixed beam; thin-walled beam; elastic couplings; pretwist angle; warpings;
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  • Reference
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