Determination of Corner and Edge Permeability in Resin Transfer Molding

Abstract

Resin flow in resin transfer molding may be strongly influenced by small heterogeneities in the fiber preform, such as narrow channels formed by bending and fitting into a mold An evaluation of preform permeability in these regions of nonuniform packing was studied. The study incorporated an empirical and analytic approach to iteratively determine the permeability in these regions. Flow front data were recorded for high fiber volume fraction woven fiber preforms. Two studies were conducted: one study addressed permeability associated with edge gaps, a second study addressed gaps caused by bending a fiber mat over a 90 degree mold edge.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1997
Accession Number
ADA332676

Entities

People

  • S. C. Mantell

Organizations

  • University of Minnesota

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Aerospace Industry
  • Chemical Engineering
  • Engineering
  • Geometry
  • Injection Molding
  • Materials
  • Materials Processing
  • Mechanical Engineering
  • Military Research
  • Moldings
  • Polymer Matrix Composites
  • Resin Transfer Molding
  • Resins
  • Scientists
  • Simulations
  • Students

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Reinforced Composite Materials