Accession Number:

ADP019439

Title:

Simulation of the Vacuum Assisted Resin Transfer Molding Process

Descriptive Note:

Conference paper

Corporate Author:

SOUTHERN ILLINOIS UNIV AT CARBONDALE MATERIALS TECHNOLOGY CENTER

Report Date:

2004-07-01

Pagination or Media Count:

5.0

Abstract:

A process model that includes the coupled phenomenon of resin flow and preform compaction was developed and used to simulate resin infiltration of a fibrous preform using the vacuum-assisted resin transfer molding VARTM process. Flow of resin through the distribution medium and preform were modeled as flow through porous media. The finite elementcontrol volume method was used to calculate the infiltrating fluid pressure distribution and track the progression of the flow front. The simulation results were compared with data obtained during infiltration of a carbon fiber preform with an epoxy resin. The parameters measured include the flow front location, resin pressure, and preform thickness change. With accurate inputs, the flow front locations and resin pressure distribution can be accurately predicted. The predicted transverse displacements do not agree well with the experimental measurements. The reasons for the differences are discussed, and further investigations are recommended to develop a more accurate compaction model.

Subject Categories:

  • Laminates and Composite Materials
  • Computer Programming and Software
  • Manufacturing and Industrial Engineering and Control of Production Systems
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE