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

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

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

Abstract

In this paper, new designs of unidirectionally arrayed chopped strands (UACS) are proposed to improve the strength and material symmetry of existing UACS laminates by introducing discontinuous angled slits into prepreg of continuous carbon-fiber/epoxy. Two slit patterns, namely, staggered discontinuous angled slit pattern and discontinuous bi-angled slit pattern, are designed. Quasi-isotropic laminates of [45/0/-45/90]2S stacked by UACS prepregs with new slit patterns are fabricated by using an autoclave. Tensile tests of these laminates are conducted. Hybrid laminates [90/0/90] with two unidirectional glass-fiber/epoxy plies as 90-degree plies and one UACS ply as 0-degree ply are fabricated for flowabilty test by using hot pressing. Existing UACS laminates with continuous angled slits and conventional laminate without slit are also fabricated and tested for a comparison. Experimental results reveal that new designed UACS laminates have higher strength and better flowability than existing UACS laminate.

Original languageEnglish
Title of host publicationECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Print)9788888785332
Publication statusPublished - Jan 1 2012
Event15th European Conference on Composite Materials: Composites at Venice, ECCM 2012 - Venice, Italy
Duration: Jun 24 2012Jun 28 2012

Publication series

NameECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials

Other

Other15th European Conference on Composite Materials: Composites at Venice, ECCM 2012
CountryItaly
CityVenice
Period6/24/126/28/12

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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  • Cite this

    Wang, W. X., Li, H., Takao, Y., & Matsubara, T. (2012). New unidirectionally arrayed chopped strands composites by introducing discontinuous angled slits into prepreg. In ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials (ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials). European Conference on Composite Materials, ECCM.