Structural health monitoring with fiber optic sensors

2009, Volume 4, Issue 2

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Abstract

Keywords

Frontiers of Mechanical Engineering >> 2009, Volume 4, Issue 2 doi: 10.1007/s11465-009-0032-y

Structural health monitoring with fiber optic sensors

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Department of Civil & Materials Engineering, Smart Sensors & NDT Laboratory, University of Illinois at Chicago, Chicago, IL 60607-7023, USA

Available online：2009-06-05

Abstract

Optical fiber sensors have been successfully implemented in aeronautics, mechanical systems, and medical applications. Civil structures pose further challenges in monitoring mainly due to their large dimensions, diversity and heterogeneity of materials involved, and hostile construction environment. This article provides a summary of basic principles pertaining to practical health monitoring of civil engineering structures with optical fiber sensors. The issues discussed include basic sensor principles, strain transfer mechanism, sensor packaging, sensor placement in construction environment, and reliability and survivability of the sensors.

Keywords

Bridges ; structural health monitoring ; smart skins ; cracks ; strains ; displacements ; fiber optic sensors ; FBG ; structures

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