Conference paper
Quantitative analysis of length-diameter distribution and cross-sectional properties of fibers from three-dimensional tomographic images
A number of rule-of-mixture micromechanical models have been successfully used to predict the mechanical properties of short fiber composites. However, in order to obtain accurate predictions, a detailed description of the internal structure of the material is required. This information is often obtained from optical microscopy of polished cross-sections of a composite.
This approach gives accurate yet local results, but a rather large number of optical images have to be processed to achieve a representative description of the morphology of the material. In this work a fully automatic algorithm for estimating the length-diameter distribution of solid or hollow fibers, utilizing three-dimensional X-ray tomographic images, is presented.
The method is based on a granulometric approach for fiber length distribution measurement, combined with a novel algorithm that relates cross-sectional fiber properties to fiber length. The work opens up a possibility to assess multivariate distributions of fiber length and diameter, cross-sectional area or other microstructural fiber properties.
As an example, the description of the microstructure of different composites with natural fibers is presented, along with verification of the results.
Language: | English |
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Year: | 2013 |
Pages: | 303-311 |
Proceedings: | 34th Risø International Symposium on Materials Science |
ISSN: | 09070079 |
Types: | Conference paper |
ORCIDs: | Madsen, Bo |