Displacement Analysis of a Single-Bent Leaf Flexure under Transverse Load

作者：Nghia Huu Nguyen; Lim Byoung Duk; Lee Dong Yeon^*

来源：International Journal of Precision Engineering and Manufacturing, 2015, 16(4): 749-754.

DOI：10.1007/s12541-015-0099-9

• Transverse load
• Third-order beam theory
• Warping effect
• Partially restrained
• Castigliano's theorem
• Single bent leaf flexure

We report a displacement analysis of a single-bent leaf flexure under transverse loading. Euler-Bernoulli, Timoshenko, and third-order beam theories, and the partially restrained warping effect, are considered. Castigliano's theorem is used to derive theoretical expressions of deflection under transverse loading. A sensitivity analysis is performed, and all of the results are verified using finite element analysis (FEA). The results show that the theoretical equations with third-order beam theory and a warping restraint factor of K=0.5 are in a good agreement with the FEA results, within a maximum 4% error These results indicate that the accuracy of the displacement analysis of the single-bent flexure under transverse loading depends on both the transverse shear deformation and the partially restrained warping effect.

• 出版日期2015-4