TY - CONF
T1 - Effects of specimen width on the tensile strength of aligned short-carbon-fiber reinforced epoxy composite laminates
AU - Li, Hang
AU - Wang, Wen Xue
AU - Matsubara, Terutake
AU - Xue, Jia
AU - Luo, Dongmei
N1 - Funding Information:
This work was partially supported by Grant-in Aid for Scientific Research (B) (22360052) of Japan.
Publisher Copyright:
© 2015 International Committee on Composite Materials. All rights reserved.
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
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M3 - Paper
AN - SCOPUS:85053157447
T2 - 20th International Conference on Composite Materials, ICCM 2015
Y2 - 19 July 2015 through 24 July 2015
ER -