Björn Willenbacher

TL;DR: In this paper, the results of a third benchmark exercise using in-plane permeability measurement, based on systems applying the radial unsaturated injection method, were presented, where 19 participants using 20 systems characterized a non-crimp and a woven fabric at three different fiber volume contents, using a commercially available silicone oil as impregnating fluid.

TL;DR: In this article, the out-of-plane permeability of two glass fibre fabrics was measured by 26 institutions using silicone oil as a test fluid, participants were free to select the test procedure, specimen dimensions and data analysis method, provided that testing was carried out at three target fibre volume fractions, 46, 50% and 54%.

TL;DR: In this paper, a measurement system for out-of-plane capillary pressure based on weight increase was developed and applied to characterize the out-ofthe-plane pressure of a random mat, a twill 2/2 woven fabric, and a biaxial non-crimp fabric (all glass fiber) at three different fiber volume contents.

TL;DR: In this paper, the authors validate a numerical model which describes saturated out-of-plane flow including hydrodynamic compaction and calculate the apparent permeability at different pressure differences.

TL;DR: In this paper, an out-of-plane measurement system is presented that initially enables monitoring of inhomogeneous hydrodynamic compaction of textiles during impregnation, and then it provides a measurement system that can be used to evaluate textiles' permeability.