A guided wave sensor enabling simultaneous wavenumber-frequency analysis for both lamb and shear-horizontal waves

Baiyang Ren, Hwanjeong Cho, Clifford Jesse Lissenden, III

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Guided waves in plate-like structures have been widely investigated for structural health monitoring. Lamb waves and shear horizontal (SH) waves, two commonly used types of waves in plates, provide different benefits for the detection of various types of defects and material degradation. However, there are few sensors that can detect both Lamb and SH waves and also resolve their modal content, namely the wavenumber-frequency spectrum. A sensor that can detect both waves is desirable to take full advantage of both types of waves in order to improve sensitivity to different discontinuity geometries. We demonstrate that polyvinylidene difluoride (PVDF) film provides the basis for a multi-element array sensor that detects both Lamb and SH waves and also measures their modal content, i.e., the wavenumber-frequency spectrum.

Original languageEnglish (US)
Article number488
JournalSensors (Switzerland)
Volume17
Issue number3
DOIs
StatePublished - Mar 1 2017

Fingerprint

Guided electromagnetic wave propagation
shear
sensors
Sensors
Health
Structural health monitoring
difluorides
Sensor arrays
Lamb waves
structural health monitoring
Surface waves
vinylidene
polyvinylidene fluoride
discontinuity
Degradation
Defects
degradation
Geometry
sensitivity
defects

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

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abstract = "Guided waves in plate-like structures have been widely investigated for structural health monitoring. Lamb waves and shear horizontal (SH) waves, two commonly used types of waves in plates, provide different benefits for the detection of various types of defects and material degradation. However, there are few sensors that can detect both Lamb and SH waves and also resolve their modal content, namely the wavenumber-frequency spectrum. A sensor that can detect both waves is desirable to take full advantage of both types of waves in order to improve sensitivity to different discontinuity geometries. We demonstrate that polyvinylidene difluoride (PVDF) film provides the basis for a multi-element array sensor that detects both Lamb and SH waves and also measures their modal content, i.e., the wavenumber-frequency spectrum.",
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A guided wave sensor enabling simultaneous wavenumber-frequency analysis for both lamb and shear-horizontal waves. / Ren, Baiyang; Cho, Hwanjeong; Lissenden, III, Clifford Jesse.

In: Sensors (Switzerland), Vol. 17, No. 3, 488, 01.03.2017.

Research output: Contribution to journalArticle

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