Characterization of Liquid Resin Infusion (LRI) filling by fringe pattern projection and in situ thermocouples

Peng Wang, Sylvain Drapier, Jérôme Molimard, Alain Vautrin, Jean Christophe Minni

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Prepregs are not alone suited to the manufacturing of new types of aircraft structural parts that tend to be thicker and have more complex shapes. Direct processes called Liquid Composites Moulding (LCM), like Resin Transfer Moulding (RTM) or Resin Infusion Process (LRI: Liquid Resin Infusion, RFI: Resin Film Infusion) are now available. Particular attention is paid here to LRI process that looks very promising. In order to optimize both the design and manufacturing parameters in LRI processes, a general model to analyze the isothermal fluid flow through highly compressible porous media such as fibrous preforms has been recently proposed [1-3]. To validate the model and to improve the knowledge of the LRI process, an experimental approach is proposed. Two different measurement techniques, micro-thermocouple sensors and fringe projection technique, have been used to characterize the process. It appears that results derived from both techniques are in agreement and support the assumption that the resin flow occurs mainly transversely to the preform plane.

Original languageEnglish
Pages (from-to)36-44
Number of pages9
JournalComposites Part A: Applied Science and Manufacturing
Issue number1
StatePublished - Jan 2010
Externally publishedYes


  • D. Process monitoring
  • E. Fringe projection
  • E. Liquid Composites Moulding
  • E. Micro-thermocouple
  • E. Resin flow


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