Abstract
This paper presents results from a two-dimensional finite element analysis that was used for determining the effect of environmental loads on fiber reinforced polymer (FRP) pretensioned piles driven in tidal waters. Two types of FRP material--aramid and carbon--were investigated, with temperature change and FRP moisture absorption being the principal environmental loads. A smeared crack model was used and a nonlinear analysis carried out using the commercially available finite element program ANSYS. Crack predictions from the finite element model showed good agreement with experimental results from a multiyear study. The analysis also indicated that, for the FRP material tested, the effects of moisture absorption were potentially more detrimental than temperature variation. The study suggests that two-dimensional finite element analysis may be suitable for predicting and extending qualitative results obtained from long-term durability studies.
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