New designs of unidirectionally arrayed chopped strands by introducing discontinuous angled slits into prepreg

Hang Li, Wen Xue Wang, Yoshihiro Takao, Terutake Matsubara

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

New designs of unidirectionally arrayed chopped strands (UACSs) are proposed to improve existing UACS laminates with continuous angled slits by introducing discontinuous angled slits into a unidirectional prepreg. Two slit patterns of staggered angled slits and bi-angled slits are designed. A paper cutter is employed to introduce slits into the prepreg. Quasi-isotropic UACS laminates with new slit patterns and existing continuous angled slits together with the conventional laminate without slits are fabricated for tensile tests. Hybrid laminates [90/0/90] with two unidirectional glass-fiber/epoxy plies and one UACS ply are fabricated for flowability tests. Experimental results reveal that newly designed UACS laminates possess higher strength and better flowability than existing UACS laminate.

Original languageEnglish
Pages (from-to)127-133
Number of pages7
JournalComposites Part A: Applied Science and Manufacturing
Volume45
DOIs
Publication statusPublished - Feb 1 2013

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials

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