Characterising pore networks and their interrelation with the fibre architecture in unidirectional composites
Year: 2024
Type: article
Abstract: This work proposes a methodology for the characterisation of complex pore features in unidirectional composite prepregs , and provides insights into the interaction between fibre architecture and pores. The method showcased allows to compare spatial distributions at a three-dimensional level, highlighting in the tape analysed a significant correspondence between regions of elevated tortuosity and increased pore fractions. Regions associated with highly tortuous meandering fibres exhibit a pronounced association with porosity located both in the bulk and at the tape surface, suggesting a strong interaction between non-collective fibre displacement and the probability of pore location. Furthermore, our study quantifies the length scale of feature propagation , shedding light on the spatial extent of microstructural pore occurrence within the composite. These findings have significant implications from a characterisation perspective to aid modelling approaches and manufacturing processes for high-performance composite prepregs tapes.
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,520
Funder: Naturalis Biodiversity Center
OpenAlex ID: W4405631979