섬유

failure mechanisms of edge delamination of composites

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 377
the mechanisms controlling edge delamination in (+or-30 degrees /+or-30 degrees /90 degrees /90/sup 0/)/sub s/ composites have been studied. edge delamination strength and fracture toughness were strongly dependent on the resin matrices. for the same resin matrix, however, these properties drastically and consistently varied with the fibers studied, suggesting a fiber/matrix interface-controlled mechanism. failure analyses using microscopy techniques revealed corresponding variations of fiber/matrix adhesion and crack paths. as the fiber/matrix adhesion decreased, the dominant crack paths in the laminates changed from straight -30 degrees /90 degrees interply failure to zig-zag 90 degrees intraply failure. the critical role of fiber/matrix adhesion on edge delamination was demonstrated
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