On the Derivation of Exact Solutions of a Tapered Cantilever Timoshenko Beam

Authors

  • Foek Tjong Wong Department of Civil Engineering, Petra Christian University, Jl. Siwalankerto 121-131, Surabaya 60236, INDONESIA
  • Junius Gunawan PT Waringin Megah, Indonesia
  • Kevin Agusta Benjamin Gideon and Associates, Indonesia
  • Herryanto Herryanto PT. Archimetric, Indonesia
  • Levin Sergio Tanaya PT. Teno Indonesia

DOI:

https://doi.org/10.9744/ced.21.2.89-96

Keywords:

Timoshenko beam, tapered beam, the principle of minimum potential energy, slender beam, deep beam

Abstract

A tapered beam is a beam that has a linearly varying cross section. This paper presents an analytical derivation of the solutions to bending of a symmetric tapered cantilever Timoshenko beam subjected to a bending moment and a concentrated force at the free end and a uniformly-distributed load along the beam. The governing differential equations of the Timoshenko beam of a variable cross section are firstly derived from the principle of minimum potential energy. The differential equations are then solved to obtain the exact deflections and rotations along the beam. Formulas for computing the beam deflections and rotations at the free end are presented. Examples of application are given for the cases of a relatively slender beam and a deep beam. The present solutions can be useful for practical applications as well as for evaluating the accuracy of a numerical method.

References

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Published

2019-10-18

How to Cite

Wong, F. T., Gunawan, J., Agusta, K., Herryanto, H., & Tanaya, L. S. (2019). On the Derivation of Exact Solutions of a Tapered Cantilever Timoshenko Beam. Civil Engineering Dimension, 21(2), 89-96. https://doi.org/10.9744/ced.21.2.89-96