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The Residual Bending Properties after Impact of CFRP Laminates with Voids

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Abstract:

The effects of voids on the residual bending strength after impact of CFRP laminates were discussed in this paper. Impact tests on the CFRP laminates with two porosity levels were conducted at five impact energy levels of 3J, 6J, 9J, 12J and 15J at the room temperature. The bending strength and the bending modulus of non-impacted specimens decreased 0.67% and 0.086% with the porosity increasing from 0.33% to 0.71%. Compared to non-impact specimens, the residual bending strength after impact (BAI) and bending modulus after impact significantly decrease with increasing impact energy. The void contents had the negative effects on the BAI after impact of the specimens at the same impact energy, while no obvious effects of void contents on the bending modulus are observed.

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Periodical:

Advanced Materials Research (Volumes 634-638)

Pages:

2081-2084

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.634-638.2081

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Cite this paper

Online since:

January 2013

Authors:

A Ying Zhang, Dong Xing Zhang

Keywords:

Bending Strength, Carbon Fiber (CF), Impact, Laminates, Porosity

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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