Original use of electrical conductivity for void detection due to injection conditions of composite materials
Identifieur interne : 001003 ( France/Analysis ); précédent : 001002; suivant : 001004Original use of electrical conductivity for void detection due to injection conditions of composite materials
Auteurs : Ludovic Labat [France] ; Michel Grisel [France] ; Joël Breard [France] ; Guy Bouquet [France]Source :
- Comptes Rendus de l'Academie des Sciences Series IIB Mechanics [ 1620-7742 ] ; 2001.
English descriptors
Abstract
The void defects present in composite parts are due to air entrapped during the injection process. We propose to use electrical conductivity measurements of the liquid to detect these defects. The saturation rate of the resin is measured as a function of time. Thanks to several sensors, placed along the mould, we are able to plot the resin front profile evolution versus the position. This method is a step forward in our knowledge of the parameter range for which no void is observed at the end of the injection.
Url:
DOI: 10.1016/S1620-7742(01)01363-0
Affiliations:
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ISTEX:094030861893281287CE41748D61575CB49C8FB1Le document en format XML
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We propose to use electrical conductivity measurements of the liquid to detect these defects. The saturation rate of the resin is measured as a function of time. Thanks to several sensors, placed along the mould, we are able to plot the resin front profile evolution versus the position. 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