Three-point bending fatigue behavior of 3D angle-interlock woven composite

Limin Jin, Hong Hu, Baozhong Sun, Bohong Gu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

23 Citations (Scopus)

Abstract

This study reports the three-point bending fatigue behavior of three-dimensional angle-interlock glass/polyester woven composite (3DAWC). The S-N curve was obtained under the different bending stress levels. The bending stress vs. bending deflection curves were recorded to show the stiffness degradation and bending deformation of the 3DAWC during the fatigue test. The failure modes of the 3DAWC under the different fatigue loading conditions were photographed and compared with those in quasi-static bending tests. It was found that the integrated construction structure of the 3D angle-interlock woven fabric can resist the delamination of the 3DAWC under high-cycle fatigue loading. The cracks propagation and breakages of the warp yarns that run through the thickness direction of the 3DAWC dominate the fatigue failure. The resin cracks and resin-yarn interface debonding are the secondary factors for determining the fatigue behavior.
Original languageEnglish
Pages (from-to)883-894
Number of pages12
JournalJournal of Composite Materials
Volume46
Issue number8
DOIs
Publication statusPublished - 1 Apr 2012

Keywords

  • 3D angle-interlock woven composite
  • damage mechanisms
  • S-N curve
  • stiffness degradation
  • three-point bending fatigue

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry
  • Mechanical Engineering
  • Mechanics of Materials

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