Compressibility and Relaxation Characteristics of Bindered Non-Crimp-Fabrics Under Temperature and Injection Fluid Influence

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


This research examines the compression, as well as short- and long-term relaxa-tion behaviour of bindered textiles at elevated temperature levels. Experiments were conducted on a carbon fibre non-crimp fabric with epoxy resin binder in a specifically designed compressibility test rig. Expanding past research activities at room temperature [1, 2] it was found in series of loading-relaxation-unloading tests, that the test temperature level significantly influences the maximum compac-tion pressure during the loading stage as well as the pressure characteristics dur-ing the relaxation stage [3]. Furthermore, a significant change in the compression behaviour, well below the specified processing temperature of the binder, was found. Also, a proof-of-concept demonstrates the “in-situ”-injection capability of a novel test-rig, reproducing RTM-like conditions in a controlled laboratory envi-ronment. The findings of this work are intended to support optimizing preform-ing and preform handling steps for liquid composite moulding processes.
Original languageEnglish
Title of host publicationProceedings of the Munich Symposium on Lightweight Design 2021
Subtitle of host publicationTagungsband zum Münchner Leichtbauseminar 2021
Place of PublicationHeidelberg
PublisherSpringer Vieweg
Number of pages14
ISBN (Electronic)978-3-662-65216-9
ISBN (Print)978-3-662-65215-2
Publication statusPublished - 29 Aug 2022


  • Composites
  • Compaction Behaviour
  • RTM

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