Finite Element Analyses Of Wood Laminated Composite Poles<sup>1</sup>

Authors

  • Cheng Piao
  • Todd F. Shupe
  • R. C. Tang
  • Chung Y. Hse

Keywords:

Composite poles, deflection, finite element analysis, stress, utility poles

Abstract

Finite element analyses using ANSYS were conducted on orthotropic, polygonal, wood laminated composite poles subjected to a body force and a concentrated load at the free end. Deflections and stress distributions of small-scale and full-size composite poles were analyzed and compared to the results obtained in an experimental study. The predicted deflection for both small-scale and full-size composite poles agreed well with the experimental measurement. Maximum stress of a cantilever pole was in parabolic areas of the top and bottom skins near the ground line. The finite element model underestimated the deflection of full-size composite poles over a variable length from the ground line of the poles, depending on the loading levels. At a higher loading level, the finite element model might overestimate the deflection close to the free end of the full-size composite poles.

References

American Society For Testing And Materials. (ASTM). 1998. Standard methods of testing small clear specimens of timber, D 143-94. American Society for Testing and Materials. West Conshohocken, PA.nBodig, J., And B. A. Jayne. 1982. Mechanics of wood and wood composites. Van Nostrand Reinhold, New York, NY. 712 pp.nMoaveni, S. 1999. Finite element analysis: Theory and application with ANSYS. Prentice Hall, Upper Saddle River, NJ. 527 p.nPiao, C., T. F. Shupe, And C. Y. Hse. 2004. Mechanical properties of small-scale wood laminated composite poles. Wood Fiber Sci. 36(4):536-546.nPiao, C., T. F. Shupe, R.C. Tang, And C. Y. Hse. 2005. Mechanical and dynamic properties of 6-meter wood laminated composite poles. (in preparation)n

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Published

2007-06-05

Issue

Number 3 / July 2005

Section

Research Contributions

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