Numerical Simulations of Extensional Ultrasonic Edge Waves for Detecting Impact Damage to the Edges of CFRP Composite Laminates

Jun Yu Harry Chu, Charles R.P. Courtney

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

Abstract

An inspection technique has been demonstrated, by experimentation and numerical modelling that extensional edge waves can be used to detect and assess damage in composite laminates. Tuned piezoelectric transducers are attached to the plate edge to generate and receive ultrasonic edge waves. Variations in signals passed between transducers indicate the presence of damage and pulse-echo response enable the location of on-edge impact damage to be determined. Numerical simulations were performed to model propagation edge waves along the edges of composite plates including models with delaminations. Experimental and numerical results for edge waves that propagate through the damage region were evaluated to identify and locate on-edge impact damage in a quasi-isotropic composite laminate. The finite element models were used to study the effect of higher frequencies on signal responses from the damaged region.

Original languageEnglish
Title of host publication2021 IEEE International Ultrasonics Symposium (IUS)
ISBN (Electronic)978-1-6654-0355-9
DOIs
Publication statusE-pub ahead of print - 13 Nov 2021
Event2021 IEEE International Ultrasonics Symposium, IUS 2021 - Virtual, Online, China
Duration: 11 Sept 201116 Sept 2011

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719

Conference

Conference2021 IEEE International Ultrasonics Symposium, IUS 2021
Country/TerritoryChina
CityVirtual, Online
Period11/09/1116/09/11

Bibliographical note

Funding Information:
The authors gratefully acknowledge funding from the EP SRC as part of the Rapid Inspection of Complex Geometries Using Edge-Guided Ultrasonic Waves project (grant no.EP/M02772 4/1).

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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