Damage detection in an aluminium plate using outlier analysis

D. Chetwynd, J.A. Rongong, S.G. Pierce, K. Worden, European Union (Funder)

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

This work presents a damage detection study of a curved aluminium panel using the statistical technique of outlier analysis, where the structure was investigated using ultrasonic Lamb waves. These waves were generated by large custom-made piezoceramic patches and were sensed by smaller piezoceramic sensors surrounding each patch. The patches were mounted using the viscoelastic material Araldite 2027 and damage was added to the plate in the form of drilled holes and saw cuts increasing in length. Outlier analysis was successfully able to distinguish between the damaged and undamaged cases with a very high classification rate of over 99%, and was also able to approximate the direction from the actuator patch in which the damage lay.
LanguageEnglish
Pages629-643
Number of pages14
JournalFatigue and Fracture of Engineering Materials and Structures
Volume31
Issue number8
DOIs
Publication statusPublished - 7 Aug 2008

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Damage detection
Ultrasonic waves
Aluminum
Surface waves
Actuators
Sensors
Direction compound
araldite

Keywords

  • damage detection
  • lamb waves
  • outlier analysis

Cite this

Chetwynd, D. ; Rongong, J.A. ; Pierce, S.G. ; Worden, K. ; European Union (Funder). / Damage detection in an aluminium plate using outlier analysis. In: Fatigue and Fracture of Engineering Materials and Structures. 2008 ; Vol. 31, No. 8. pp. 629-643.
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Damage detection in an aluminium plate using outlier analysis. / Chetwynd, D.; Rongong, J.A.; Pierce, S.G.; Worden, K.; European Union (Funder).

In: Fatigue and Fracture of Engineering Materials and Structures, Vol. 31, No. 8, 07.08.2008, p. 629-643.

Research output: Contribution to journalArticle

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