Transient gas flow technique for inspection of fiber preforms in resin transfer molding

Sun K. Kim, Isaac M. Daniel*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A transient gas flow method was developed to determine the quality of fibrous preforms in resin transfer molding (RTM) prior to resin injection. The method aims at detecting defects resulting from preform misplacement in the mold, accidental inclusions, preform density variations, race tracking, shearing, etc. Unlike the previously developed method based on steady-state gas flow, the new method allows for the acquisition of continuous time-varying pressure data from multiple ports during a single test. The validity of the method was confirmed by one-dimensional flow experiments.

Original languageEnglish (US)
Pages (from-to)1694-1699
Number of pages6
JournalComposites Part A: Applied Science and Manufacturing
Volume36
Issue number12
DOIs
StatePublished - Dec 1 2005

Keywords

  • A. Preform
  • B. Defects
  • D. Process monitoring
  • E. Resin transfer moulding (RTM)

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

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