Abstract
This paper presents the determination of the unsaturated permeability of a carbon fibre woven fabric using an experimental method of constant injection pressure and radial flow. Two effects in permeability measurement are reported: the error introduced by assuming constant injection pressure and the evolution of permeability dispersion with volume fraction. For the first, a simple approach that uses a set of values instead of just one to define the injection pressure is proposed. For the second, results showed a reduction in the dispersion with higher fibre volume fractions, which is believed to be due to the reduction of the variability of the size of the pores of the reinforcement.
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