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Analysis of Two-Dimensional Flow of Epoxy Fluids Through Woven Glass Fabric

  • J. B. Schutz
  • K. B. Smith
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)

Abstract

Fabrication of magnet coils for the International Thermonuclear Experimental Reactor will require vacuum pressure impregnation of epoxy resin into the glass fabric of the insulation system. Flow of a fluid through a packed bed of woven glass fabric is extremely complicated, and semiempirical methods must be used to analyze these flows. The previous one-dimensional model has been modified for analysis of two-dimensional isotropic flow of epoxy resins through woven glass fabric. Several two-dimensional flow experiments were performed to validate the analysis, and to determine permeabilities of several fabric weave types. The semiempirical permeability is shown to be a characteristic of the fabric weave, and once determined, may be used to analyze flow of fluids of differing viscosities. Plain weave has a lower permeability than satin weave fabric, possibly due to the increased tortuosity of the preferential flow paths along fiber tows. A flow radius of approximately 2 meters through satin weave fabric is predicted for fluid viscosities of 0.10 Pa s (100 cps) in 20 hours, characteristic of VPI resins.

Keywords

Flow Experiment Resin System International Thermonuclear Experimental Reactor Dimensional Flow Preferential Flow Path 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    J.B. Schutz, N.A. Munshi, and K.B. Smith, ITER central solenoid model coil impregnation optimization, Cryogenics, 35 (1995)Google Scholar
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    K.L. Adams, B. Miller, and L. Rebenfeld, Forced in-plane flow of an epoxy resin in fibrous networks, Polym. Eng. Sci., 26:20 (1986)Google Scholar
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    T.G. Gutowski and Z. Cai, The consolidation of composites, in: “Proceedings of Manufacturing International, 1988 — The Manufacturing Science of Composites”, American Society of Mechanical Engineers, New York (1988)Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • J. B. Schutz
    • 1
  • K. B. Smith
    • 1
  1. 1.Composite Technology Development, Inc.BoulderUSA

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