Finite element modeling of small-scale tapered wood-laminated composite poles with biomimicry features

  • Authors: Piao, Cheng; Shupe, Todd F.; Tang, R.C.; Hse, Chung Y.
  • Publication Year: 2008
  • Publication Series: Miscellaneous Publication
  • Source: Wood and Fiber Science, Volume 40 Issue 1, 2008, pp. 3 ? 13

Abstract

Tapered composite poles with biomimicry features as in bamboo are a new generation of wood laminated composite poles that may some day be considered as an alternative to solid wood poles that are widely used in the transmission and telecommunication fields. Five finite element models were developed with ANSYS to predict and assess the performance of five types of composites members: a tapered hollow pole with webs (Pole-A), a tapered hollow pole without webs (Pole-B), a tapered solid composite pole (Pole-C), a uniform-diameter hollow pole with webs (Pole-D), and a uniform-diameter hollow pole without webs (Pole-E). The predicted deflection by these models agreed well with those of the experiment, and the predicted normal stress agreed with those calculated. The normal and shear stress distributions inside the members were investigated, and stress distributions in the XY and YZ planes are exhibited. As expected, the webs reduced the local shear stress and improved shear capacity, especially in the top and groundline regions where shear levels were the highest. The webs had little effect on the normal stress. Shear stress increased from the bottom to the top for the members with taper.

  • Citation: Piao, Cheng; Shupe, Todd F.; Tang, R.C.; Hse, Chung Y. 2008. Finite element modeling of small-scale tapered wood-laminated composite poles with biomimicry features. Wood and Fiber Science, Volume 40 Issue 1, 2008, pp. 3 ? 13
  • Keywords: Biomimicking, composite poles, finite element analysis, shear stress, taper
  • Posted Date: December 22, 2008
  • Modified Date: January 23, 2009
  • Requesting Print Publications

    Publication requests are subject to availability. Fiscal responsibility limits the hardcopies of publications we produce and distribute. Electronic versions of publications may be downloaded, distributed and printed.

    Please make any requests at pubrequest@fs.fed.us.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.