Mold filling and cure modeling of RTM and SRIM processes

Lee, L.James; Young, Wen-Bin; Lin, R.

doi:10.1016/0263-8223(94)90072-8

Cited by 115 publications

(50 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Modeling of both temperature and cure are important because the viscosity of the resin is sensitive to both of these factors. Before reaction of the polymer resin occurs, the resin is temperature sensitive; but after polymerization begins, the resin is cure sensitive [1]. Although the continuous sensitivity equation (CSE) has been previously applied under isothermal conditions [5,6], the aim of this report is to extend this to non-isothermal situations for the first time.…”

Section: IVmentioning

confidence: 99%

“…By assuming that the fiber and resin temperatures are at the same equilibrium temperature inside a small control volume [1], the energy balance can be written as…”

Section: Non-isothermal Resin Transfer Moldingmentioning

confidence: 99%

“…The non-isothermal RTM analyses have been previously investigated in references [1][2][3][4]. Modeling of both temperature and cure are important because the viscosity of the resin is sensitive to both of these factors.…”

Section: IVmentioning

confidence: 99%

See 2 more Smart Citations

Process Modeling of Composites by Resin Transfer Molding: Sensitivity Analysis for Non-Isothermal Considerations

Henz¹,

Tamma²,

Mohan³

et al. 2002

View full text Add to dashboard Cite

Approved for public release; distribution is unlimited. AbstractThe resin transfer molding (RTM) manufacturing process consists of either of two considerations. The first is the fluid flow analysis where tracking of the flow fronts are of primary importance, and the second is the combined multidisciplinary flow/thermal analysis, where kinetics and cure need to be accounted for in the process modeling stages. In the combined multidisciplinary flow/thermal analysis, viscosity is a function of temperature. The so-called continuous sensitivity formulations are developed for the latter case of non-isothermal process modeling of composites manufactured by RTM to predict, analyze, and optimize the manufacturing process. Attention is focused on developments for non-isothermal process modeling simulations, and numerical illustrative examples are presented for the sensitivity analysis of structural composites manufactured by RTM.

show abstract

Section: IVmentioning

confidence: 99%

“…By assuming that the fiber and resin temperatures are at the same equilibrium temperature inside a small control volume [1], the energy balance can be written as…”

Section: Non-isothermal Resin Transfer Moldingmentioning

confidence: 99%

See 1 more Smart Citation

Process Modeling of Composites by Resin Transfer Molding: Sensitivity Analysis for Non-Isothermal Considerations

Henz¹,

Tamma²,

Mohan³

et al. 2002

View full text Add to dashboard Cite

show abstract

“…Accordingly, resin flowing prediction before manufacturing complex structures with various fiber laminates is essential. The CV-FEM (control volume finite element method) is utilized to explicate the behavior of resin flowing in fiber laminates [4,5]. With respect to the VARTM simulation, Mohan [6] modeled flow in channels based on a finite element method.…”

Section: Introductionmentioning

confidence: 99%

A Prediction Method for In-Plane Permeability and Manufacturing Applications in the VARTM Process

Lee¹,

Jhan²,

Chung³

et al. 2011

ENG

View full text Add to dashboard Cite

VARTM (Vacuum Assisted Resin Transfer Molding) is a popular method for manufacturing large-scaled, single-sided mold composite structures, such as wind turbine blades and yachts. Simulation to find the proper infusion scenario before manufacturing is essential to avoid dry spots as well as incomplete saturation and various fiber weaves with different permeability affect numerical simulation tremendously. This study focused on deriving the in-plane permeability prediction method for FRP (Fiber Reinforced Plastics) laminates in the VARTM process by experimental measurements and numerical analysis. The method provided an efficient way to determine the permeability of laminates without conducting lots of experiments in the future. In-plane permeability imported into the software, RTM-Worx, to simulate resin flowing pattern before the infusion experiments of a 3D ship hull with two different infusion scenarios. The close agreement between experiments and simulations proved the correctness and applicability of the prediction method for the in-plane permeability.

show abstract

“…This shows the importance of heat transfer equations in the non-isothermal flow in porous media. Generally, the energy balance equations can be derived using two different approaches: (1) two-phase or thermal non-equilibrium model [2][3][4][5][6] and (2) local thermal equilibrium model [7][8][9][10][11][12][13][14][15][16][17][18]. There are two different energy balance equations for two phases (such as resin and fiber in liquid composite molding process) separately in the two-phase model, and the heat transfer between these two equations occur via the heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer in Porous Media

A-to-Z Guide to Thermodynamics, Heat and Mass Transfer, and Fluids Engineering

View full text Add to dashboard Cite

Mold filling and cure modeling of RTM and SRIM processes

Cited by 115 publications

References 14 publications

Process Modeling of Composites by Resin Transfer Molding: Sensitivity Analysis for Non-Isothermal Considerations

Process Modeling of Composites by Resin Transfer Molding: Sensitivity Analysis for Non-Isothermal Considerations

A Prediction Method for In-Plane Permeability and Manufacturing Applications in the VARTM Process

Heat Transfer in Porous Media

Contact Info

Product

Resources

About