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Computed tomography for analysis of fibre distribution in carbon fibre preforms

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Abstract:

This paper presents a method for computation of the fibre content of carbon fibre preforms from 3D computed tomography (CT) data. Quantitative estimations of the fibre content are deduced under the assumption of the presence of regions with maximum possible fibre packing. This method is used to compare the influence of different sewing techniques onto the global or the local fibre content of small preform samples. The principle of operation of the method has been verified on a 19-piece test sample. Further tests were performed to examine the influence of a reduced acquisition angle as well as of an appropiate material calibration.

Keywords: Carbon Fibre Composites; Computed Tomography; Preform

Document Type: Research Article

DOI: http://dx.doi.org/10.1784/insi.2008.50.6.312

Affiliations: 1 Development Center for X-ray technology (EZRT), a common department of Fraunhofer Institute for Integrated Circuits (IIS), Erlangen and Nondestructive Testing (IZFP), Saarbrcken 90762 Frth, Germany. ulf.hassleriis.fraunhofer.de, 0 61 75 40, Tel: +49 911 58, Fax: +49 911 58 0 61 75 99

Publication date: June 1, 2008

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