Development of a nondestructive evaluation method for FRP bridge decks

Jeff Brown; Terra Fox

doi:10.1117/12.851796

3 May 2010 Development of a nondestructive evaluation method for FRP bridge decks

Jeff Brown, Terra Fox

Proceedings Volume 7661, Thermosense XXXII; 76610C (2010) https://doi.org/10.1117/12.851796
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Open steel grids are typically used on bridges to minimize the weight of the bridge deck and wearing surface. These grids, however, require frequent maintenance and exhibit other durability concerns related to fatigue cracking and corrosion. Bridge decks constructed from composite materials, such as a Fiber-reinforced Polymer (FRP), are strong and lightweight; they also offer improved rideability, reduced noise levels, less maintenance, and are relatively easy to install compared to steel grids. This research is aimed at developing an inspection protocol for FRP bridge decks using Infrared thermography. The finite element method was used to simulate the heat transfer process and determine optimal heating and data acquisition parameters that will be used to inspect FRP bridge decks in the field. It was demonstrated that thermal imaging could successfully identify features of the FRP bridge deck to depths of 1.7 cm using a phase analysis process.

Citation Download Citation

Jeff Brown and Terra Fox "Development of a nondestructive evaluation method for FRP bridge decks", Proc. SPIE 7661, Thermosense XXXII, 76610C (3 May 2010); https://doi.org/10.1117/12.851796

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