Three-dimensional numerical simulation of the filling stage in resin infusion process

Yang, Bo; Tang, Qian; Wang, Shilong; Jin, Tianguo; Bi, Fengyang

doi:10.1177/0021998316631809

Cited by 10 publications

(9 citation statements)

References 41 publications

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“…Kang et al 21 used FE/CV to model the smooth progression of the flow front. Andersson et al 22 and Yong et al 23 used volume of fluid (VOF) method in ANSYS CFX to address the variation of preform thickness with a viscoelastic model. Dereims et al 24 have proposed a non-isothermal finite element (FE) model of VI in which the infusion was governed by Stokes and Darcy law in the preform.…”

Section: Introductionmentioning

confidence: 99%

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Vacuum infusion in porous preform with different mould configurations: Flow simulation and experimental validation

Adhikari

Gururaja

Hemchandra

2020

Journal of Reinforced Plastics and Composites

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The present work focuses on the formulation of transient incompressible resin flow during vacuum-assisted resin transfer moulding using level set front tracking method in a multi-block structured grid within a finite difference framework. Initially, the relation between compaction pressure and fibre volume fraction ([Formula: see text]) has been established by conducting compression tests using a universal tensile machine under dry and wet conditions. In-plane permeability has been characterised as a function of [Formula: see text] using three thicknesses of unidirectional carbon fabric (4, 8 and 12 plies). A pressure data acquisition system and a non-contact out-of-plane displacement measurement setup have been developed using a single lens camera to conduct the vacuum infusion experiments. The numerical model prediction of the instantaneous change in pressure, displacement, and fill time has been validated with the experiments for the three different thickness of unidirectional preform in a flat plate and a plate with a centrally located hole during vacuum infusion. The coupled transient flow model with the level set interface propagation in a multi-block framework shows a good agreement with vacuum infusion experiments. The proposed transient vacuum infusion flow model, compaction relation with [Formula: see text], permeability and experimental setup show the potential to capture realistic flow physics during vacuum infusion on different mould configurations.

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Section: Introductionmentioning

confidence: 99%

“…22 and Yong et al. 23 used volume of fluid (VOF) method in ANSYS CFX to address the variation of preform thickness with a viscoelastic model. Dereims et al.…”

Section: Introductionmentioning

confidence: 99%

Vacuum infusion in porous preform with different mould configurations: Flow simulation and experimental validation

Adhikari

Gururaja

Hemchandra

2020

Journal of Reinforced Plastics and Composites

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“…During the mould-filling of CRTM, resin infiltrates the preform and expels air from the cavity, this is a two-phase flow process. The Volume of Fluid (VOF) method is a relatively mature interface tracking technique in Eulerian grids for two-phase flow, and it has been widely used in the simulation of RTM processes, so the VOF two-phase model is used to describe the resin flow during the mouldfilling process of CRTM in this paper [9,27]:…”

Section: Modeling Of Flowmentioning

confidence: 99%

“…To ensure mass conservation, the master-slave element method is employed to calculate the resin squeezing from the infiltrated preform. The detailed information on implementation method and parameters calculation can be found [27].…”

Section: Fig4 An Example Of Preform Compaction Speed-stress Curvementioning

confidence: 99%

Modeling and 3D Simulation of the Mould Compression and Resin Flow for Force-Controlled Compression Resin Transfer Moulding

Yang¹,

Wang²,

Tang³

2019

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Since the existence of the complicated coupling between mould compression and resin flow, the full 3D simulation of the filling process in force-controlled compression resin transfer moulding (CRTM) has not been realized, especially when the resin flow front is irregular on the thickness direction during thick part moulding. In this paper, the coupled resin flow and mould compression behaviors are investigated firstly, a equivalent spring method is proposed to describe the preform compaction. The lubrication effect is taken into account, so the mould compression speed can be determined when the resin flow front is irregular on the thickness direction. Then the Volume of Fluid (VOF) two-phase model is established to express the resin-air flow in narrow gap and preform simultaneously, in which the narrow gap is considered as 3D area without flow resistance. Finally, the 3D numerical method for solving the above mathematical models is developed. In this method, the changing of the mould cavity is simulated by moving mesh technology, and the master-slave element method is used to simulate the resin squeezing from the infiltrated preform. Comparisons with analysis results are provided to prove the correctness of the above method, and two 3D examples are given to demonstrate the simulating capability.

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“…The resin flow is modelled by means of adding source terms to the standard code. Using a similar approach, Yang et al 18 proposed a 3-D model for the resin infusion process. In both studies, the thickness of the preform is taken as variable in the process, which leads to the use of dynamic mesh method to account for the changes in preform porosity and permeability.…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling of the flow in a swelling preform during LCM mould filling

Salokhe

Rahmati

Masoodi

2020

Journal of Reinforced Plastics and Composites

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Composite industry increasingly uses natural fibres because of their environment-friendly advantages. These natural fibres may swell during the mould filling process when they absorb resin, and this swelling reduces the porosity and permeability of the preform. Hence, computational modelling of the flow in swelling porous media would be useful to model the different mould filling processes with the swelling effect. This paper demonstrates the possibility of using computational fluid dynamics to study the effect of swelling on liquid composite moulding mould filling in isotropic and orthotropic porous media. An empirical relation for local permeability changes is used to model the flow of resin under constant volume flow rate and constant injection pressure conditions. The flow front locations and inlet pressure predicted by the computational fluid dynamics simulations are in good agreement with the experimental data for 1D rectilinear flow case. Further, to capture the flow patterns, two different arrangements employing point injection are considered. It was observed that the volume fraction of resin in swelling porous medium is 6% less than rigid porous medium at any given time. It was also observed that the location of the inlet and outlet has a considerable effect on the flow front advancement.

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Three-dimensional numerical simulation of the filling stage in resin infusion process

Cited by 10 publications

References 41 publications

Vacuum infusion in porous preform with different mould configurations: Flow simulation and experimental validation

Vacuum infusion in porous preform with different mould configurations: Flow simulation and experimental validation

Modeling and 3D Simulation of the Mould Compression and Resin Flow for Force-Controlled Compression Resin Transfer Moulding

Numerical modelling of the flow in a swelling preform during LCM mould filling

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