TY - JOUR

T1 - Experimental characterization of single ply out-of-plane permeability through gaseous flow

AU - Fauster, Ewald

AU - Vierkötter, C.

AU - Appel, L.

AU - Lugo, J.

AU - Schijve, W.

AU - Heider, Dirk

N1 - Publisher Copyright: © 2017 Society of Plastics Engineers

PY - 2018/9

Y1 - 2018/9

N2 - A new approach to measure out-of-plane permeability of single ply unidirectional fiber material under tensile load has been investigated. Single ply permeability is an important material parameter in prepreg fabrication processes where the polymer impregnates the fiber reinforcement. Fibers are processed under tension changing the flow behavior of the resin into the porous media. The experimental characterization cell developed for these processes is mounted to a universal testing machine allowing application and continuous variation of the tensile load applied to the fiber sample. The article outlines the setup including the sensing and data acquisition concept, and implements the data reduction procedure based on Darcy's flow in porous media to obtain the transverse permeability as a function of tension loading. Transverse permeability was determined for single glass and carbon fiber tows for a wide range of tensile loading. The smaller diameter carbon tow permeability showed an order smaller permeability compared to glass fibers. In addition, permeability for both materials changed up to two orders as tensile loading was applied. The results can be used to optimize the impregnation behavior of single ply infusion processes. POLYM. COMPOS., 39:3247–3258, 2018. © 2017 Society of Plastics Engineers

AB - A new approach to measure out-of-plane permeability of single ply unidirectional fiber material under tensile load has been investigated. Single ply permeability is an important material parameter in prepreg fabrication processes where the polymer impregnates the fiber reinforcement. Fibers are processed under tension changing the flow behavior of the resin into the porous media. The experimental characterization cell developed for these processes is mounted to a universal testing machine allowing application and continuous variation of the tensile load applied to the fiber sample. The article outlines the setup including the sensing and data acquisition concept, and implements the data reduction procedure based on Darcy's flow in porous media to obtain the transverse permeability as a function of tension loading. Transverse permeability was determined for single glass and carbon fiber tows for a wide range of tensile loading. The smaller diameter carbon tow permeability showed an order smaller permeability compared to glass fibers. In addition, permeability for both materials changed up to two orders as tensile loading was applied. The results can be used to optimize the impregnation behavior of single ply infusion processes. POLYM. COMPOS., 39:3247–3258, 2018. © 2017 Society of Plastics Engineers

UR - http://www.scopus.com/inward/record.url?scp=85016443599&partnerID=8YFLogxK

U2 - 10.1002/pc.24337

DO - 10.1002/pc.24337

M3 - Article

AN - SCOPUS:85016443599

VL - 39.2018

SP - 3247

EP - 3258

JO - Polymer Composites

JF - Polymer Composites

SN - 0272-8397

IS - 9

ER -