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Structural Engineering and Mechanics
  Volume 54, Number 1, April10 2015, pages 189-198

Torsional analysis of a single-bent leaf flexure
Nghia Huu Nguyen, Byoung-Duk Lim and Dong-Yeon Lee

Abstract     [Full Text]
    We present a torsion analysis of single-bent leaf flexure that is partially restrained, subject to a torsional load. The theoretical equations for the torsional angle are derived using Castigliano\'s theorem. These equations consider the partially restrained warping, and are verified using finite element analysis (FEA). A sensitivity analysis over the length, width, and thickness is performed and verified via FEA. The results show that the errors between the theory result and the FEA result are lower than 6%. This indicates that the proposed theoretical torsional analysis with partially restrained warping is sufficiently accurate.
Key Words
    torsion; warping restraint factor; partially restrained warping; leaf flexure; Castigliano
Nghia Huu Nguyen, Byoung-Duk Lim and Dong-Yeon Lee: School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea

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