Effects of specimen width on the tensile strength of aligned short-carbon-fiber reinforced epoxy composite laminates

Hang Li, Wen Xue Wang, Terutake Matsubara, Jia Xue, Dongmei Luo

研究成果: 会議への寄与タイプ学会誌査読

抄録

This study investigates the size effects of specimen width on the tensile testing properties of aligned short carbon fiber reinforced epoxy composite laminate. This is a kind of newly designed short fiber composite laminates and called unidirectionally arrayed chopped strands (UACS) laminates, fabricated by introducing discontinuous slits into the conventional continuous fiber prepreg. Tensile tests for specimens with different width cut from UACS laminates are conducted. Results of tests reveal that tensile strength increases with the increase of specimen width until the specimen width is equal to 25 mm. Failure modes are different for specimens with different width. Fiber breakage of 0° plies are observed only for specimens with width larger than 20 mm. The stress concentration at the free edge plays a main role for the effect of the specimen width on the tensile properties. Large delamination occurs near the free edge and around the cross points of the slits in the 0° and adjacent ±45° plies.

本文言語英語
出版ステータス出版済み - 2015
イベント20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, デンマーク
継続期間: 7月 19 20157月 24 2015

会議

会議20th International Conference on Composite Materials, ICCM 2015
国/地域デンマーク
CityCopenhagen
Period7/19/157/24/15

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • セラミックおよび複合材料

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