Application of vibrating vents to control void content of RTM parts

Patrick Hergan, Ewald Fauster, Ralf Schledjewski

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This work is showing a new and promising way to reduce the void content in composite structures. The application of vibrating vents is creating a pulsing fluid pressure during the resin injection phase of the resin transfer moulding process. This is mobilizing trapped air bubbles in the preform. To prove the reduction of the void content a design of experiments study was carried out. Density measurements at different distances to the injection gate, which are directly related to the void content, are proving the beneficial aspect of this procedure. Furthermore, a statistical analysis was carried out revealing a significant reduction of the void content in zones far from the injection gate.
Original languageEnglish
Title of host publicationProceedings of SAMPE Europe Conference 2018
Number of pages7
Publication statusPublished - Jul 2018

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