scholarly journals Simulating Mold Filling in Compression Resin Transfer Molding (CRTM) Using a Three-Dimensional Finite-Volume Formulation

2018 ◽  
Vol 2 (2) ◽  
pp. 23 ◽  
Author(s):  
Julian Seuffert ◽  
Luise Kärger ◽  
Frank Henning
Keyword(s):  
Finite Volume ◽  
Resin Transfer Molding ◽  
Three Dimensional ◽  
Mold Filling ◽  
Transfer Molding ◽  
Compression Resin Transfer Molding

Numerical Simulation of Three-Dimensional Mold Filling in Resin Transfer Molding

2003 ◽  
Vol 22 (16) ◽  
pp. 1497-1529 ◽  
Author(s):  
Akbar Shojaei ◽  
S. Reza Ghaffarian ◽  
S. Mohammad-Hossien Karimian
Keyword(s):  
Numerical Simulation ◽  
Resin Transfer Molding ◽  
Three Dimensional ◽  
Mold Filling ◽  
Transfer Molding

scholarly journals COMPUTATIONAL MODELING OF RTM AND LRTM PROCESSES APPLIED TO COMPLEX GEOMETRIES

2012 ◽  
Vol 11 (1-2) ◽  
pp. 93 ◽  
Author(s):  
J. Da S. Porto ◽  
M. Letzow ◽  
E. D. Dos Santos ◽  
S. C. Amico ◽  
J. A. Souza ◽  
...  
Keyword(s):  
Porous Medium ◽  
Flow Behavior ◽  
Resin Transfer Molding ◽  
Three Dimensional ◽  
Complex Geometries ◽  
Resin Flow ◽  
Transfer Molding ◽  
Rtm Process ◽  
General Terms ◽  
Filling Time

Light Resin Transfer Molding (LRTM) is a variation of the conventional manufacturing process known as Resin Transfer Molding (RTM). In general terms, these manufacturing processes consist of a closed mould with a preplaced fibrous preform through which a polymeric resin is injected, filling the mold completely, producing parts with complex geometries (in general) and good finish. Those processes differ, among other aspects, in the way that injection occurs. In the RTM process the resin is injected through discrete points whereas in LRTM it is injected into an empty channel (with no porous medium) which surrounds the entire mold perimeter. There are several numerical studies involving the RTM process but LRTM has not been explored enough by the scientific community. Based on that, this work proposes a numerical model developed in the FLUENT package to study the resin flow behavior in the LRTM process. Darcy’s law and Volume of Fluid method (VOF) are used to treat the interaction between air and resin during the flow in the porous medium, i.e. the mold filling problem. Moreover, two three-dimensional geometries were numerically simulated considering the RTM and LRTM processes. It was possible to note the huge differences about resin flow behavior and filling time between these processes to manufacture the same parts.

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