The vacuum infusion is a process usually applied to manufacture large structures of composite materials, such as wind turbine blades. This work analyzes the macroscopic resin flow through a laminate of fiberglass plies with different orientations, during the filling stage of the vacuum infusion process to manufacture two different pieces. The pressure inside the mold, velocity vectors, and the resin inlet mass flow are studied through a three-dimensional numerical modeling under non-steady conditions validated experimentally. The numerical model simulates each ply of the laminate like an individual porous media and takes into account the stacking sequence of the laminate. The influence of the permeability values of the distribution media and of the fiberglass laminate on the evolution of resin infusion is analyzed. The numerical model reproduces the effects of the stacking sequence and race tracking on the resin flow front.
Mallick PK (ed). Composites engineering handbook. New York, NY: Marcel Dekker, Inc., 1997.
2.
BertinMTouchardFLafarie-FrenotMC. Experimental study of the stacking sequence effect on polymer/composite multi-layers submitted to thermomechanical cyclic loadings. Int J Hydrogen Energy2010; 35: 11397–11404.
3.
ParkHJ. Effects of stacking sequence and clamping force on the bearing stregths of mechanically fastened joints in composite laminates. Compos Struct2001; 53: 213–221.
4.
KhashabaUASebaeyTAAlnefaieKA. Failure and reliability analysis of pinned-joints composite laminates: effects of stacking sequences. Compos Part B2013; 45: 1694–1703.
5.
GhiasiHPasiniDLessardL. Optimum stacking sequence design of composite materials Part I: constant stiffness design. Compos Struct2009; 90: 1–11.
6.
Le-ManhTLeeJ. Stacking sequence optimization for maximum strengths of laminated composite plates using genetic algorithm and isogeometric analysis. Compos Struct2014; 116: 357–363.
7.
WuJBurgueñoR. An integrated approach to shape and laminate stacking sequence optimization of free-form FRP shells. Comput Methods Appl Mech Eng2006; 195: 4106–4123.
8.
HolmbergJABerglundLA. Micromechanisms of delamination failure in RTM U-beams. Compos Part A Appl Sci Manuf1997; 28: 709–717.
9.
LiuLZhangBMWangDF. Effects of cure cycles on void content and mechanical properties of composite laminates. Compos Struct2006; 73: 303–309.
10.
ScottAESinclairISpearingSM. Influence of voids on damage mechanisms in carbon/epoxy composites determined via high resolution computed tomography. Compos Sci Technol2014; 90: 147–153.
11.
LiuQParnasRSGiffardHS. New set-up for in-plane permeability measurement. Compos Part A Appl Sci Manuf2007; 38: 954–962.
12.
EndruweitAErmanniP. The in-plane permeability of sheared textiles. Experimental observations and a predictive conversion model. Compos Part A Appl Sci Manuf2004; 35: 439–451.
13.
VernetN. Experimental determination of the permeability of engineering textiles: benchmark II. Compos Part A Appl Sci Manuf2014; 61: 172–184.
14.
HoesKDinescuDSolH. New set-up for measurement of permeability properties of fibrous reinforcements for RTM. Compos Part A Appl Sci Manuf2002; 33: 959–969.
15.
ModiDCorreiaNJohnsonM. Active control of the vacuum infusion process. Compos Part A Appl Sci Manuf2007; 38: 1271–1287.
16.
JohnsonRJPitchumaniR. Simulation of active flow control based on localized preform heating in a VARTM process. Compos Part A Appl Sci Manuf2006; 37: 1815–1830.
17.
GrujicicMChittajalluKMWalshS. Non-isothermal preform infiltration during the vacuum-assisted resin transfer molding (VARTM) process. Appl Surf Sci2005; 245: 51–64.
18.
DongCJ. Development of a process model for the vacuum assisted resin transfer molding simulation by the response surface method. Compos Part A Appl Sci Manuf2006; 37: 1316–1324.
19.
MontésNSánchezF. A new computational tool for liquid composite moulding process design based on configuration spaces. Compos Part A Appl Sci Manuf2010; 41: 58–77.
20.
TanHPillaiKM. Numerical simulation of reactive flow in liquid composite molding using flux-corrected transport (FCT) based finite element/control volume (FE/CV) method. Int J Heat Mass Transf2010; 53: 2256–2271.
21.
TrochuFRuizEAchimV. Advanced numerical simulation of liquid composite molding for process analysis and optimization. Compos Part A Appl Sci Manuf2006; 37: 890–902.
22.
SimacekPEksikÖHeiderD. Experimental validation of post-filling flow in vacuum assisted resin transfer molding processes. Compos Part A Appl Sci Manuf2012; 43: 370–380.
23.
LiuHLHwangWR. Permeability prediction of fibrous porous media with complex 3D architectures. Compos Part A Appl Sci Manuf2012; 43: 2030–2038.
24.
KuentzerNSimacekPAdvaniSG. Permeability characterization of dual scale fibrous porous media. Compos Part A Appl Sci Manuf2006; 37: 2057–2068.
25.
TanHPillaiKM. Multiscale modelling of unsaturated flow in dual-scale fiber preforms of liquid composite molding III: reactive flows. Compos Part A Appl Sci Manuf2012; 43: 29–44.
26.
DeValveCPitchumaniR. Simulation of void formation in liquid composite molding processes. Compos Part A Appl Sci Manuf2013; 51: 22–32.
27.
FerlandPGuittardDTrochuF. Concurrent methods for permeability measurement in resin transfer molding. Polym Compos1996; 17: 149–158.
28.
Berg DC, Dickert M, Meiners D, et al. Influence of inaccuracies in permeability measurements. In: 16th European Conference on Composite Materials. Seville, Spain: ESCM, 2014.
29.
ScholzSGillespieJWHeiderD. Measurement of transverse permeability using gaseous and liquid flow. Compos Part A Appl Sci Manuf2007; 38: 2034–2040.
30.
GrujicicMChittajalluKMWalshS. Effect of shear, compaction and nesting on permeability of the orthogonal plain-weave fabric performs. Mater Chem Phys2004; 86: 358–369.
31.
GrujicicMChittajalluKMWalshS. Lattice Boltzmann method based computation of the permeability of the orthogonal plain-weave fabric preforms. J Mater Sci2006; 41: 7989–8000.
32.
SasHSWurtzelEBSimacekP. Effect of relative ply orientation on the through-thickness permeability of unidirectional fabrics. Compos Sci Technol2014; 96: 116–121.
33.
DarcyH. Les fontaines publiques de la ville de dijon, Paris, France: Dalmont, 1856.
