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<doi>/ISEC.res.2017.158</doi>
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<article-title>DYNAMIC ANALYSIS OF FIBER-REINFORCED<br/>
POLYMER COMPOSITE ELECTRIC POLES</article-title>
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<author>SARA MOHAMADI and GIRUM URGESSA</author>

<aff>Dept of Civil, Environmental, and Infrastructure Engineering, George Mason University,<br/>
Fairfax, USA</aff>


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<abstract>
<title>ABSTRACT</title>
<p>This paper presents finite element modeling of tapered fiber-reinforced polymer (FRP)
poles in ABAQUS for dynamic analysis. Modal analysis and transient dynamic
analysis are presented in order to evaluate the effect of fiber orientation, taper ratio,
number of layers and lamina thickness on the dynamic properties of tapered poles.
Trends observed from the parametric studies on the analyses of the FRP poles are
enumerated. In addition, the effect of rectangular dynamic excitations on the overall
response of the FRP poles is presented encapsulating impulsive loadings that may
occur due to wind gusts or loss of cable tension supported by the FRP poles. Result
shows that the fundamental frequency of the poles decreased as the fiber-orientation
increased up to 60 degrees. In addition, the fundamental frequency of the poles
increased as the number of layers increased. No significant difference was observed in
natural frequency of the poles when varying the lamina thickness without changing the
overall laminate thickness. The fundamental frequency of the FRP poles decreased by
10% as the taper ratio increased from 0.4 to 1. Transient dynamic analysis showed that
FRP poles with higher fiber orientation angle had the larger maximum tip deflection.
However, only small differences were observed when the deflections are normalized as
the ratio of the maximum dynamic deformation to the maximum static deformation.</p>
<p><italic>Keywords: </italic>FRP poles, Fiber orientation, Finite element analysis.</p>
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