In this work experimental measurements of the permeability of fully interlaced 3D-woven carbon fibre preforms are performed using the unsaturated parallel flow method. The effect on the permeability from three different parameters is studied by altering the architecture of woven preforms and varying mould sizes in a duct flow set-up. Influences from the geometrically different surface layers of the woven preforms, from fibre volume fraction and from warp yarn crimp are studied. The measurements show negligible influence on the permeability from crimp and the fraction of weave surface layers while the fibre volume fraction has a prominent influence. However, the effect is not consistent in terms of fibre volume fraction variation alone but depends on how it is varied.
LundströmTSStenbergRBergströmR. In-plane permeability measurements: a nordic round-robin study. Compos A Appl Sci Manufact2000; 31: 29–43.
2.
ParnasRSHowardJGLuceTL. Permeability characterization. Part 1: A proposed standard reference fabric for permeability. Polym Compos1995; 16: 429–445.
3.
PearceNRLGuildFJSummerscalesJ. An investigation into the effects of fabric architecture on the processing and properties of fibre reinforced composites produced by resin transfer moulding. Compos A Appl Sci Manufact1998; 29: 19–27.
4.
EndruweitALongAC. Analysis of compressibility and permeability of selected 3D woven reinforcements. J Compos Mater2010; 44: 2833–2862.
5.
Xiao X, Zeng X, Long AC, et al. Modeling of through-thickness permeability for 3D woven fabrics. In: Proceedings of the 3rd World Conference on 3D Fabrics and Their Applications [1-84626-049-3], 2010, pp.206–211.
6.
ZengXBrownLPEndruweitA. Geometrical modelling of 3D woven reinforcements for polymer composites: prediction of fabric permeability and composite mechanical proper- ties. Compos A Appl Sci Manufact2014; 56: 150–160.
7.
LekakouCJohariMAKNormanD. Measurement techniques and effects on in-plane permeability of woven cloths in resin transfer moulding. Compos A Appl Sci Manufact1996; 27: 401–408.
8.
DialloMLGauvinRTrochuF. Experimental analysis and simulation of flow through multi-layer fiber reinforcements in liquid composite molding. Polym Compos1998; 19: 246–256.
9.
GebartBRLidströmP. Measurement of in-plane permeability of anisotropic fiber reinforcements. Polym Compos1996; 17: 43–51.
10.
HammondVHLoosAC. The effects of fluid type and viscosity on the steady-state and advancing front permeability behavior of textile preforms. J Reinf Plastic Compos1997; 16: 50–72.
11.
PillaiKM. Modeling the unsaturated flow in liquid composite molding processes: A review and some thoughts. J Compos Mater2004; 38: 2097–2118.
12.
VernetNRuizEAdvaniS. Experimental determination of the permeability of engineering textiles: Benchmark {II}. Compos A Appl Sci Manufact2014; 61: 172–184.
13.
ArbterRBeraudJMBinetruyC. Experimental determination of the permeability of textiles: A benchmark exercise. Compos A Appl Sci Manufact2011; 42: 1157–1168.
14.
SteenkamerDAMcKnightSHWilkinsDJ. Experimental characterization of permeability and fibre wetting for liquid moulding. J MaterSci1995; 30: 3207–3215.
15.
WilliamsJGMorrisCEMEnnisBC. Liquid flow through aligned fiber beds. Polym Eng Sci1974; 14: 413–419.
16.
Foley FM and Gutowski T. The effect of process variables on permeability in the flexible resin transfer molding (FRTM) process. In: Proceedings of the 36th International SAMPE Symposium and Exhibition, 1991, 326–340.
17.
LuoYVerpoestIHoesK. Permeability measurement of textile reinforcements with several test fluids. Compos A Appl Sci Manuf2001; 32: 1497–1504.
18.
KhokarN. 3D-weaving: theory and practice. J Text Instit2001; 92: 193–207.
19.
TahirMWStigFÅkermoM. A numerical study of the influence from architecture on the permeability of 3D-woven fibre reinforcement. Compos A Appl Sci Manufact2015; 74: 18–25.
20.
KhokarN. Noobing: a nonwoven 3D fabric-forming process explained. J Text Instit2002; 3: 52–74.
21.
MohamedMHBogdanovichAEDickinsonLC. A new generation of 3D woven fabric preform and composite. SAMPE J2001; 37: 8–17.
22.
StigFHallströmS. Spatial modelling of 3D-woven textiles. Compos Struct2012; 94: 1495–1502.
23.
StigFHallströmS. A modelling framework for composites containing 3D reinforcement. Compos Struct2012; 94: 2895–2901.
24.
LeBelFFanaeiAERuizE. Experimental characterization by fluorescence of capillary flows in dual-scale engineering fabrics. Text Res J2013; 83: 1634–1659.
LanguriEMPillaiK. Effect of aspect ratio on measured permeability and flow-front progress in 1D flow experiment. Int J Fluid Mech Res2011; 38: 551–564.
27.
StigFHallströmS. Influence of crimp on 3D-woven fibre reinforced composites. Compos Struct2013; 95: 114–122.
TahirMWHallströmSÅkermoM. Effect of dual scale porosity on the overall permeability of fibrous structures. Compos Sci Technol2014; 103: 56–62.
30.
RanganathanSPhelanFRAdvaniSG. A generalized model for the transverse fluid permeability in unidirectional fibrous media. Polym Compos1996; 17: 222–230.
31.
NedanovPBAdvaniSG. Numerical computation of the fiber preform permeability tensor by the homogenization method. Polym Compos2002; 23: 758–770.
32.
GooijerHWarmoeskerkenMMCGGroot WassinkJ. Flow resistance of textile materials: Part II: Multifilament fabrics. Text Res J2003; 73: 480–484.
