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Novel method of defect identification in bent structures through feature-guided wave detection using fiber bragg grating sensors
Pabitro Ray, Prabhakaran Manogharan, , ,
Published in SPIE
2015
Volume: 9634
   
Abstract
Feature-guided waves (FGW) have emerged as a promising technique for structural health monitoring as they are well confined in local features such as bends and welds. In this paper, we propose and demonstrate a novel method for identifying defects in 90 transverse bent structures through FGW detection using fiber Bragg gratings. Our experimental results are in excellent agreement with results predicted using 3D-Finite Element (FE) simulations of the bent structure. © 2015 SPIE.
About the journal
JournalData powered by TypesetProceedings of SPIE - The International Society for Optical Engineering
PublisherData powered by TypesetSPIE
ISSN0277786X
Open AccessNo
Concepts (14)
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    Bragg gratings
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    Defects
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    Fiber bragg gratings
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    Fiber optic sensors
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    Fibers
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    Guided electromagnetic wave propagation
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    Optical fibers
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    3-D FINITE ELEMENTS
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    Bent structure
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    DEFECT IDENTIFICATION
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    Fiber bragg grating sensors
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    LOCAL FEATURE
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    WAVE DETECTION
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    Structural health monitoring