The preform is covered by a flexible vacuum bag in vacuum-assisted resin infusion process, and the preform compaction state is time and space dependent during the mould-filling stage, there is no practical tool for the filling simulation. In this paper, the resin flow governing equations for vacuum-assisted resin infusion are built based on the analysis of the preform compaction behaviour and the fibre tow impregnation. For obtaining the numerical solution conveniently and accurately, an alternative approach is proposed in which the primary flow is computed from the normal Darcy’s law, two-slave elements are added to each master element, named sink slave element and deformation slave element, to calculate the resin mass variation caused by fibre tow infiltration and preform deformation. Three examples are conducted to verify the precision and broad applicability of the approach. The influence of the preform deformation and the unsaturated effect on the mould filling is analysed.
UmMKLeeWI. A study on the mold filling process in resin transfer molding. Polym Eng Sci1991; 31(11): 765–771.
2.
YooYELeeWI. Numerical simulation of the resin transfer mold filling process using the boundary element method. Polym Compos1996; 17(3): 368–374.
3.
VollerVRPengS. An algorithm for analysis of polymer filling molds. Polym Eng Sci1995; 35(22): 1758–1765.
4.
HanKLeeLJLiouM. Fiber mat deformation in liquid conposite molding II: molding. Polym Compos1993; 14(2): 151–160.
5.
YoungWBPupelKHanK. Analysis of resin injection molding in molds with preplaced fiber mats II: numerical simulation and experiment of molding filling. Polym Compos1991; 12(1): 30–38.
6.
LamYCJoshiSCLiuX. Numerical modeling of mold-filling process in resin-transfer moulding. Compos Sci Technol2000; 60: 845–855.
7.
SimacekPAdvaniSG. A numerical model to predict fiber tow saturation during liquid composite molding. Compos Sci Technol2003; 63(12): 1725–1736.
8.
GourichonBBinetruyCKrawczakP. A new numerical procedure to predict dynamic void content in liquid composite molding. Compos A2006; 37: 1961–1969.
9.
SchellJSUDelegliseMBinetruyC. Numerical prediction and experimental characterisation of meso-scale-voids in liquid composite moulding. Compos A2007; 38(12): 2460–2470.
10.
GourichonBDelégliseMBinetruyC. Dynamic void content prediction during radial injection in liquid composite molding. Compos A2008; 39(1): 46–55.
11.
LawrenceJMNeacsuVAdvaniSG. Modeling the impact of capillary pressure and air entrapment on fiber tow saturation during resin infusion in LCM. Compos A2009; 40(8): 1053–1064.
12.
TanHPillaiKM. Multiscale modeling of unsaturated flow in dual-scale fiber preforms of liquid composite molding I: Isothermal flows. Compos A2012; 43(1): 1–13.
13.
TanHPillaiKM. Multiscale modeling of unsaturated flow of dual-scale fiber preform in liquid composite molding II: non-isothermal flows. Compos A2012; 43(1): 14–28.
14.
TanHPillaiKM. Multiscale modeling of unsaturated flow in dual-scale fiber preforms of liquid composite molding III: reactive flows. Compos A2012; 43(1): 29–44.
15.
CorreiaNCRobitailleFLongAC. Analysis of the vacuum infusion moulding process: I. Analytical formulation. Compos A2005; 36(12): 1645–1656.
16.
GeorgeM. Composites – the enabler for large fast yachts. Reinf Plast2000; 44(12): 28–31.
17.
VaidyaUKAbrahamABhideS. Affordable processing of thick section and integral multi-function composites. Compos A2001; 32: 1133–1142.
18.
RobitailleFGauvinR. Compaction of textile reinforcements for composites manufacturing. I: review of experimental results. Polym Compos1998; 19(2): 198–216.
19.
RobitailleFGauvinR. Compaction of textile reinforcements for composites manufacturing II: compaction and relaxation of dry and H2O-saturated woven reinforcements. Polym Compos1998; 19(5): 543–557.
20.
YenilmezBSenanMMurat SozerE. Variation of part thickness and compaction pressure in vacuum infusion process. Compos Sci Technol2009; 69: 1710–1719.
21.
GovignonQBickertonSKellyPA. Simulation of the reinforcement compaction and resin flow during the complete resin infusion process. Compos A2010; 41: 45–57.
22.
TrochuFRuizEAchimV. Advanced numerical simulation of liquid composite molding for process analysis and optimization. Compos A2006; 37: 890–902.
23.
SimacekPAdvaniSG. Modeling resin flow and fiber tow saturation induced by distribution media collapse in VARTM. Compos Sci Technol2007; 67(13): 2757–2769.
24.
JoubaudLAchimVTrochuF. Numerical simulation of resin infusion and reinforcement consolidation under flexible cover. Polym Compos2005; 26(4): 417–427.
25.
GutowskiTGMorigakiTCaiZ. The consolidation of laminate composites. J Compos Mater1987; 21: 172–188.
26.
PillaiKMAdvaniSG. Numerical simulation of unsaturated flow in woven fiber preforms during the resin transfer molding process. Polym Compos1998; 19(1): 71–80.
27.
ParkCHLebelASaouabA. Modeling and simulation of voids and saturation in liquid composite molding processes. Compos A2011; 42(6): 658–668.
28.
FoleyMEGillespieJW. Modeling the effect of fiber diameter and fiber bundle count on tow impregnation during liquid molding processes. J Compos Mater2005; 39(12): 1045–1065.
29.
HirtCWNicholsBD. Volume-of-fluid (VOF) method for the dynamics of free boundaries. J Comput Phys1981; 39: 201–225.
30.
VerleyeBCroceRGriebelM. Permeability of textile reinforcements: simulation, influence of shear and validation. Compos Sci Technol2008; 68(13): 2804–2810.
31.
RobitailleFGauvinR. Compaction of textile reinforcements for composites manufacturing III: reorganization of the fiber network. Polym Compos1999; 20(1): 48–61.
