Defect detection in carbon fiber-reinforced composites using directional dark-field imaging and tomography

Azat Slyamov, Adriaan van Roosmalen, Mads A. Pedersen, Kenneth K. Nielsen, Ole V. Ferguson, Lars P. Mikkelsen, Erik Lauridsen*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

This paper proposes the use of circular X-ray grating interferometry as an effective technique for defect detection with potential applications for in-line inspection of carbon fiber-reinforced pultruded profiles used inside the load-carrying spar caps of wind turbine blades. A fuzzball defect in the pultruded profile is characterized as a demonstration. The method allows for large field-of-view quantification of local fiber alignment and relative fiber volume fraction. A two-dimensional through the thickness averaged distribution of the fiber orientation, the mean scattering, and fractional anisotropy are determined. Based on this, it is possible to determine the size of the defect as well as quantify the severity of the defect.
Original languageEnglish
Title of host publication43rd Risoe International Symposium on Materials Science
Number of pages7
Volume1293
PublisherIOP Publishing
Publication date2023
Article number012016
DOIs
Publication statusPublished - 2023
Event43rd Risø International Symposium on Materials Science - Risø, Roskilde, Denmark
Duration: 4 Sept 20237 Sept 2023

Conference

Conference43rd Risø International Symposium on Materials Science
Country/TerritoryDenmark
CityRisø, Roskilde
Period04/09/202307/09/2023
SeriesIOP Conference Series: Materials Science and Engineering
ISSN1757-8981

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