A reference specimen for permeability measurements of fibrous reinforcements for RTM

An evaluation of the reproducibility of capacitive sensor based in-plane permeability measurements: A benchmarking study

“…Due to the high standard deviations during permeability measurements Morren et al [25] developed a solid epoxy test specimen as a reference sample for permeability measurements. The specimen was produced with a stereo lithography technique.…”

“…Three different kinds of experimental methods of permeability measurements are wellknown: 1D flow [13][14][15][16], 2D flow [13,17,18] and 3D flow [19][20][21][22]. Nowadays no defined standard requirements for permeability measurements and calculation procedures are available [23][24][25]. In the study of Vernet et al [16] there is a description of a way to standardize 1D permeability measurements.…”

Avaliação Geométrica De Canais Retangulares Em Um Processo De Infusão Por Resina

“…Na região do meio poroso é considerada uma força de campo resistente ao escoamento da resina abordada pela Lei de Darcy, que indica que a taxa de escoamento de resina por unidade de área é proporcional ao gradiente de pressão e inversamente proporcional à viscosidade da resina (Morren et al, 2009). A equação matemática para esse fenômeno é dada por:…”

User-Friendly Permeability Predicting Software for Technical Textiles

“…This variation is registered and hence an arrival time for the sensors can be stored. From the stored date, the experimentally determined permeability is computed with the inverse method (Morren et al, 2006).…”