Review of ultrasonic testing for NDE of composite wind turbine blades Chakrapani, Sunil Barnard, Daniel Dayal, Vinay Dayal, Vinay
dc.contributor.department Aerospace Engineering
dc.contributor.department Center for Nondestructive Evaluation (CNDE) 2019-07-09T17:43:37.000 2020-06-29T22:45:05Z 2020-06-29T22:45:05Z Tue Jan 01 00:00:00 UTC 2019 2020-05-08 2019-05-08
dc.description.abstract <p>This paper will present a review of the use of Air coupled ultrasonics for nondestructive evaluation of wind turbine blades carried out at the CNDE, Iowa State University. Results will show the use of air coupled ultrasonics to scan thick composite sections of 40m wind turbine blades including the spar cap, the leading and trailing edges. Detection of defects such as slots, holes, fiber waviness (both in-plane and out-of-plane waviness), delaminations and dry fibers will be presented. Other features like adhesive thickness and length estimation in spar cap/shear web section and the trailing edge section will also be presented. The use of air coupled UT is not limited to just detection, but also characterization of the detected defects. Results highlighting the use of ultrasonic velocity to characterize defects will be presented. This includes defining damage index in terms of velocity, as well as development of stiffness maps to show reduction in structural stiffness based on the defect. Additionally, the challenges of NDT of wind turbine blades using conventional ultrasonics will also be presented.</p>
dc.description.comments <p>This proceeding may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This proceeding appeared in Chakrapani, Sunil Kishore, Daniel J. Barnard, and Vinay Dayal. "Review of ultrasonic testing for NDE of composite wind turbine blades." <em>AIP Conference Proceedings</em> 2102, no. 1 (2019): 100003, and may be found at DOI: <a href="" target="_blank">10.1063/1.5099831</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 1047
dc.identifier.contextkey 14526137
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_conf/47
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 00:25:10 UTC 2022
dc.source.uri 10.1063/1.5099831
dc.subject.disciplines Aerodynamics and Fluid Mechanics
dc.subject.disciplines Structures and Materials
dc.subject.keywords Ultrasonic phenomena
dc.subject.keywords Ultrasonic testing
dc.subject.keywords Wind turbines
dc.title Review of ultrasonic testing for NDE of composite wind turbine blades
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication fe8f4e39-b155-4160-bf89-f41a94e42248
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
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