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Investigations of the carbon fibre cross-sectional areas and their non-circularities by means of laser diffraction

Huether, Jonas J. 1; Liebig, Wilfried V. ORCID iD icon 1
1 Karlsruher Institut für Technologie (KIT)


Laser diffraction is a commonly used tool to measure the fibre diameter of carbon fibres prior to mechanical testing. However, non-circularities of carbon fibres need to be considered in order to minimise measuring errors. As the work at hand demonstrates, using a single measurement of the fibre diameter may cause deviations as high as 30% from a computationally determined value. It appears that the error can be minimised by acquiring a data set of several apparent diameters as a function of the angle around the fibre axis. Based on this data, the cross-sectional area can be calculated as a circle with an averaged diameter or as an ellipse by applying an elliptical fitting procedure.

Verlagsausgabe §
DOI: 10.5445/IR/1000127214
Veröffentlicht am 07.12.2020
DOI: 10.1088/1757-899X/942/1/012034
Zitationen: 2
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Karlsruher Institut für Technologie (KIT)
Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1757-899X
KITopen-ID: 1000127214
Erschienen in IOP conference series / Materials science and engineering
Verlag Institute of Physics Publishing Ltd (IOP Publishing Ltd)
Band 942
Heft 1
Seiten Art.Nr. 012034
Bemerkung zur Veröffentlichung 41st Riso International Symposium on Materials Science: Materials and Design for Next Generation Wind Turbine Blades, Roskilde, Denmark, 7 - 10 September 2020
Vorab online veröffentlicht am 24.10.2020
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