Surface bonded optical fibre sensors for the inspection of CFRP plates using ultrasonic Lamb waves

Stephen Pierce; WR Philp; B Culshaw; Anthony Gachagan; Alistair McNab; Gordon Hayward; F Lecuyer

doi:10.1088/0964-1726/5/6/007

Surface bonded optical fibre sensors for the inspection of CFRP plates using ultrasonic Lamb waves

Stephen Pierce, WR Philp, B Culshaw, Anthony Gachagan, Alistair McNab, Gordon Hayward, F Lecuyer

Electronic And Electrical Engineering

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

45 Citations (Scopus)

Abstract

Surface-bonded single-mode optical fibre sensors have been used to monitor the interaction of ultrasonic S-0 lamb waves with defects in carbon iibre composite plates. Lamb waves were initiated using Perspex-coupled piezoelectric transducers. The defects investigated comprised holes, regions of impact damage and delaminations. Holes could be identified by analysing direct S-0 reflections and impact damage by S-0 back-waif echo amplitude. Large delaminations gave a poor direct S-0 reflection. Evidence was found for mode conversion at centre plane delaminations.

Original language	English
Pages (from-to)	776-787
Number of pages	12
Journal	Smart Materials and Structures
Volume	5
Issue number	6
DOIs	https://doi.org/10.1088/0964-1726/5/6/007
Publication status	Published - Dec 1996

Keywords

fiber
ultrasonic Lamb waves
surface-bonded
optical fibre sensors
inspection
CFRP plates

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10.1088/0964-1726/5/6/007

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title = "Surface bonded optical fibre sensors for the inspection of CFRP plates using ultrasonic Lamb waves",

abstract = "Surface-bonded single-mode optical fibre sensors have been used to monitor the interaction of ultrasonic S-0 lamb waves with defects in carbon iibre composite plates. Lamb waves were initiated using Perspex-coupled piezoelectric transducers. The defects investigated comprised holes, regions of impact damage and delaminations. Holes could be identified by analysing direct S-0 reflections and impact damage by S-0 back-waif echo amplitude. Large delaminations gave a poor direct S-0 reflection. Evidence was found for mode conversion at centre plane delaminations.",

keywords = "fiber, ultrasonic Lamb waves, surface-bonded, optical fibre sensors, inspection, CFRP plates",

author = "Stephen Pierce and WR Philp and B Culshaw and Anthony Gachagan and Alistair McNab and Gordon Hayward and F Lecuyer",

year = "1996",

month = dec,

doi = "10.1088/0964-1726/5/6/007",

language = "English",

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T1 - Surface bonded optical fibre sensors for the inspection of CFRP plates using ultrasonic Lamb waves

AU - Pierce, Stephen

AU - Philp, WR

AU - Culshaw, B

AU - Gachagan, Anthony

AU - McNab, Alistair

AU - Hayward, Gordon

AU - Lecuyer, F

PY - 1996/12

Y1 - 1996/12

N2 - Surface-bonded single-mode optical fibre sensors have been used to monitor the interaction of ultrasonic S-0 lamb waves with defects in carbon iibre composite plates. Lamb waves were initiated using Perspex-coupled piezoelectric transducers. The defects investigated comprised holes, regions of impact damage and delaminations. Holes could be identified by analysing direct S-0 reflections and impact damage by S-0 back-waif echo amplitude. Large delaminations gave a poor direct S-0 reflection. Evidence was found for mode conversion at centre plane delaminations.

AB - Surface-bonded single-mode optical fibre sensors have been used to monitor the interaction of ultrasonic S-0 lamb waves with defects in carbon iibre composite plates. Lamb waves were initiated using Perspex-coupled piezoelectric transducers. The defects investigated comprised holes, regions of impact damage and delaminations. Holes could be identified by analysing direct S-0 reflections and impact damage by S-0 back-waif echo amplitude. Large delaminations gave a poor direct S-0 reflection. Evidence was found for mode conversion at centre plane delaminations.

KW - fiber

KW - ultrasonic Lamb waves

KW - surface-bonded

KW - optical fibre sensors

KW - inspection

KW - CFRP plates

U2 - 10.1088/0964-1726/5/6/007

DO - 10.1088/0964-1726/5/6/007

M3 - Article

VL - 5

SP - 776

EP - 787

JO - Smart Materials and Structures

JF - Smart Materials and Structures

SN - 0964-1726

IS - 6

ER -