Abstract
The present study outlines a methodology for microstructural characterisationof fibre reinforced composites containing circular fibres. Digital micrographsof polished cross-sections are used as input to a numerical image processingtool that determines spatial mapping and radii detection of the fibres. Theinformation is used for different analyses to investigate and characterisethe fibre architecture. As an example, the methodology is applied to glassfibre reinforced composites with varying fibre contents. The different fibrevolume fractions (FVFs) affect the number of contact points perfibre, the communal fibre distance and the local FVF. The fibre diameter distributionand packing pattern remain somewhat similar for the considered materials.The methodology is a step towards a better understanding of the compositemicrostructure and can be used to evaluate the interconnection between fibrearchitecture and composite properties.
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