Ballast Breakage Analysis Using FBG Acoustic Emission Measurement System

Ginu Rajan; Jayan S. Vinod; Tristan Moses; B. Gangadhara Prusty; Jiangtao Xi

doi:10.1007/s10706-017-0165-4

Ballast Breakage Analysis Using FBG Acoustic Emission Measurement System

Ginu Rajan^*, Jayan S. Vinod, Tristan Moses, B. Gangadhara Prusty, Jiangtao Xi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Fibre Bragg grating (FBG) based acoustic emission (AE) measurement technique is utilized to monitor ballast breakage activities during uniaxial compressive loading. AE activity is recorded continuously using an FBG attached to the ballast sample and using a high speed FBG acoustic interrogation system. Crack induced AE events, amplitude, spectrograph of AE frequencies and strain induced by the cracks are obtained using the fibre optic system. This information can be crucial in analyzing ballast breakage, one of the key parameters that determine the permanent settlement of railway track. The successful implementation of the method underpins the potential of using fibre optic acoustic emission method to study ballast breakage with further investigation into the frequency analysis and modelling the spectrum of AE at microscopic level can shed light into a deeper understanding of railway track settlements.

Original language	English
Pages (from-to)	1239-1247
Number of pages	9
Journal	Geotechnical and Geological Engineering
Volume	35
Issue number	3
DOIs	https://doi.org/10.1007/s10706-017-0165-4
Publication status	Published - 1 Jun 2017
Externally published	Yes

Keywords

Acoustic emission
Ballast
FBG sensor

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10.1007/s10706-017-0165-4

Cite this

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title = "Ballast Breakage Analysis Using FBG Acoustic Emission Measurement System",

abstract = "Fibre Bragg grating (FBG) based acoustic emission (AE) measurement technique is utilized to monitor ballast breakage activities during uniaxial compressive loading. AE activity is recorded continuously using an FBG attached to the ballast sample and using a high speed FBG acoustic interrogation system. Crack induced AE events, amplitude, spectrograph of AE frequencies and strain induced by the cracks are obtained using the fibre optic system. This information can be crucial in analyzing ballast breakage, one of the key parameters that determine the permanent settlement of railway track. The successful implementation of the method underpins the potential of using fibre optic acoustic emission method to study ballast breakage with further investigation into the frequency analysis and modelling the spectrum of AE at microscopic level can shed light into a deeper understanding of railway track settlements.",

keywords = "Acoustic emission, Ballast, FBG sensor",

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AU - Rajan, Ginu

AU - Vinod, Jayan S.

AU - Moses, Tristan

AU - Prusty, B. Gangadhara

AU - Xi, Jiangtao

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Fibre Bragg grating (FBG) based acoustic emission (AE) measurement technique is utilized to monitor ballast breakage activities during uniaxial compressive loading. AE activity is recorded continuously using an FBG attached to the ballast sample and using a high speed FBG acoustic interrogation system. Crack induced AE events, amplitude, spectrograph of AE frequencies and strain induced by the cracks are obtained using the fibre optic system. This information can be crucial in analyzing ballast breakage, one of the key parameters that determine the permanent settlement of railway track. The successful implementation of the method underpins the potential of using fibre optic acoustic emission method to study ballast breakage with further investigation into the frequency analysis and modelling the spectrum of AE at microscopic level can shed light into a deeper understanding of railway track settlements.

AB - Fibre Bragg grating (FBG) based acoustic emission (AE) measurement technique is utilized to monitor ballast breakage activities during uniaxial compressive loading. AE activity is recorded continuously using an FBG attached to the ballast sample and using a high speed FBG acoustic interrogation system. Crack induced AE events, amplitude, spectrograph of AE frequencies and strain induced by the cracks are obtained using the fibre optic system. This information can be crucial in analyzing ballast breakage, one of the key parameters that determine the permanent settlement of railway track. The successful implementation of the method underpins the potential of using fibre optic acoustic emission method to study ballast breakage with further investigation into the frequency analysis and modelling the spectrum of AE at microscopic level can shed light into a deeper understanding of railway track settlements.

KW - Acoustic emission

KW - Ballast

KW - FBG sensor

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Ballast Breakage Analysis Using FBG Acoustic Emission Measurement System

Abstract

Keywords

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