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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2010, Vol. 31 ›› Issue (8): 1695-1700.

• Material Engineering and Mechanical Manufacturing • Previous Articles    

Monitoring and Analyzing Characteristics of Resin Flow in Liquid Resin Infusion Manufacturing Process

Wang Peng, Drapier Sylvain, Molimard Jerome, Vautrin Alain   

  1. Structures and Materials Science Division, cole Nationale Supérieure des Mines de Saint-Etienne
  • Received:2009-09-03 Revised:2010-01-18 Online:2010-08-25 Published:2010-08-25
  • Contact: Wang Peng

Abstract: As a promising component of the resin infusion process (RIP), the liquid resin infusion (LRI) manufacturing process is widely used in aeronautic industries.In order to improve the understanding and the capacity to control the LRI process, this article deals with the problem of fluid front detection and proposes an array of in-situ temperature micro-sensors to predict the position of the resin flow front during the filling stage of the infusion process.The principle is to detect the arrival of the resin front by the temperature change in each sensor.The fluid front detection by micro-thermocouples will permit us to both correlate its result to the measurement of an optical fibre sensor and verify the two-stage infusion in preform.The article presents details of the technique as well as the preliminary results about the in-plane resin flow front and flow front across the preform thickness.

Key words: resin infusion process, liquid resin infusion, fluid flow front, micro-thermocouple, sensors

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