Multifunctional cementitious composites with structural and damage monitoring capabilities for smart bridges

Abstract

Aging and overloaded critical civil infrastructure systems such as bridges pose great risks to the hundreds of millions of daily users. Limited resources for their repairs and replacements have necessitated the need for the development of multifunctional composites with both structural and in-situ damage monitoring capabilities. An in-situ triboluminescent optical fiber (ITOF) sensor with an integrated sensing and transmission system has been developed. The ITOF sensor has been incorporated into reinforced triboluminescent multifunctional cementitious composites (TMCC) to allow for real time structural health monitoring of bridges. Results are reported on the performance characterization of the sensor under flexural loading and show that the integrated sensor is able to detect localized damage (cracks) before the failure of the TMCC beams. This will enable early damage detection that will lead to prompt repairs thereby resulting in significant life and cost savings. Copyright 2013 by Aurora Flight Sciences.

Publication Title

International SAMPE Technical Conference

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