Evaluation of barely visible indentation damage (BVID) in CF/EP sandwich composites using guided wave signals

Mustapha, S; Ye, L; Dong, X; Alamdari, MM

Evaluation of barely visible indentation damage (BVID) in CF/EP sandwich composites using guided wave signals

Mustapha, S Ye, L Dong, X Alamdari, MM

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Publication Type:: Journal Article
Citation:: Mechanical Systems and Signal Processing, 2016, 76-77 pp. 497 - 517
Issue Date:: 2016-08-01

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Field	Value	Language
dc.contributor.author	Mustapha, S	en_US
dc.contributor.author	Ye, L	en_US
dc.contributor.author	Dong, X	en_US
dc.contributor.author	Alamdari, MM	en_US
dc.date.issued	2016-08-01	en_US
dc.identifier.citation	Mechanical Systems and Signal Processing, 2016, 76-77 pp. 497 - 517	en_US
dc.identifier.issn	0888-3270	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119186
dc.description.abstract	© 2016 Elsevier Ltd. All rights reserved. Barely visible indentation damage after quasi-static indentation in sandwich CF/EP composites was assessed using ultrasonic guided wave signals. Finite element analyses were conducted to investigate the interaction between guided waves and damage, further to assist in the selection process of the Lamb wave sensitive modes for debonding identification. Composite sandwich beams and panels structures were investigated. Using the beam structure, a damage index was defined based on the change in the peak magnitude of the captured wave signals before and after the indentation, and the damage index was correlated with the residual deformation (defined as the depth of the dent), that was further correlated with the amount of crushing within the core. Both A0 and S0 Lamb wave modes showed high sensitivity to the presence of barely visible indentation damage with residual deformation of 0.2 mm. Furthermore, barely visible indentation damage was assessed in composite sandwich panels after indenting to 3 and 5 mm, and the damage index was defined, based on (a) the peak magnitude of the wave signals before and after indentation or (b) the mismatch between the original and reconstructed wave signals based on a time-reversal algorithm, and was subsequently applied to locate the position of indentation.	en_US
dc.relation.ispartof	Mechanical Systems and Signal Processing	en_US
dc.relation.isbasedon	10.1016/j.ymssp.2016.01.023	en_US
dc.subject.classification	Acoustics	en_US
dc.title	Evaluation of barely visible indentation damage (BVID) in CF/EP sandwich composites using guided wave signals	en_US
dc.type	Journal Article
utslib.citation.volume	76-77	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0915 Interdisciplinary Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	76-77	en_US

Abstract:

© 2016 Elsevier Ltd. All rights reserved. Barely visible indentation damage after quasi-static indentation in sandwich CF/EP composites was assessed using ultrasonic guided wave signals. Finite element analyses were conducted to investigate the interaction between guided waves and damage, further to assist in the selection process of the Lamb wave sensitive modes for debonding identification. Composite sandwich beams and panels structures were investigated. Using the beam structure, a damage index was defined based on the change in the peak magnitude of the captured wave signals before and after the indentation, and the damage index was correlated with the residual deformation (defined as the depth of the dent), that was further correlated with the amount of crushing within the core. Both A0 and S0 Lamb wave modes showed high sensitivity to the presence of barely visible indentation damage with residual deformation of 0.2 mm. Furthermore, barely visible indentation damage was assessed in composite sandwich panels after indenting to 3 and 5 mm, and the damage index was defined, based on (a) the peak magnitude of the wave signals before and after indentation or (b) the mismatch between the original and reconstructed wave signals based on a time-reversal algorithm, and was subsequently applied to locate the position of indentation.

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http://hdl.handle.net/10453/119186