Compaction properties of “ex-situ” toughened preforms

Gang Liu, Weidong Li, Long Li, Yan Zhao, Xiaosu Yi

Research output: Journal PublicationArticlepeer-review

4 Citations (Scopus)


According to the requirments of liquid composite moulding, the compaction behaviors of two types of “ex-situ” toughened preforms were investigated. The preforms were fabricated by interleaving such “ex-situ” toughening layers as the porous film or the non-woven fabric between the carbon fabrics. The thickness of the preforms under different pressure was measured by the mechanical testing machine. The results show that the “ex-situ” toughening layers decreses the fiber volume fraction of the preforms under a certain pressure, and the compaction behaviors of the preforms,under different pressures, depend on the micro-structure of the toughening layers. Additionally, the thickness of the preforms was predicted by adopting a compaction constitutive model for the fabric. It is shown that the calculated results are in good agreement with the experimental results when the empirical coefficient k=2.

Original languageEnglish
Pages (from-to)1194-1200
Number of pages7
JournalFuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
Issue number4
Publication statusPublished - 1 Aug 2015
Externally publishedYes


  • Constitutive model
  • Fabric
  • Preforms
  • Thickness compaction
  • “Ex-situ” toughening

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry (all)
  • Condensed Matter Physics
  • Mechanics of Materials


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