Dynamic splitting tensile test of short carbon fiber C/SiC ceramic matrix composites

Xu Ying; Shao Binbin; Xu Weiwei; Yang Jianming

doi:10.11883/1001-1455(2017)02-0315-08

Volume 37 Issue 2

Mar. 2017

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Xu Ying, Shao Binbin, Xu Weiwei, Yang Jianming. Dynamic splitting tensile test of short carbon fiber C/SiC ceramic matrix composites[J]. Explosion And Shock Waves, 2017, 37(2): 315-322. doi: 10.11883/1001-1455(2017)02-0315-08

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Xu Ying, Shao Binbin, Xu Weiwei, Yang Jianming. Dynamic splitting tensile test of short carbon fiber C/SiC ceramic matrix composites[J]. Explosion And Shock Waves, 2017, 37(2): 315-322. doi: 10.11883/1001-1455(2017)02-0315-08

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Dynamic splitting tensile test of short carbon fiber C/SiC ceramic matrix composites

doi: 10.11883/1001-1455(2017)02-0315-08

Xu Ying^{1, 2},
Shao Binbin^{1
,
,},
Xu Weiwei¹,
Yang Jianming¹

1.
School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, Anhui, China
2.
Research Center of Mine Underground Engineering of Ministry of Education, Anhui University of Science and Technology, Huainan 232001, Anhui, China

Received Date: 2015-09-30
Rev Recd Date: 2016-03-07
Publish Date: 2017-03-25

Abstract

Abstract

In order to investigate the dynamic fracture mechanics behavior and damage morphology of C/SiC ceramic matrix composites, dynamic splitting tensile tests on the C/SiC composites with three different volume fractions of short carbon fiber (16.0%, 21.0%, 24.8%) were carried out by the split Hopkinson pressure bar, the destructive interface part of C/SiC composites was scanned by using scanning electron microscopy and the failure characteristics and toughening mechanism of C/SiC composites were analyzed. The experimental results show that the dynamic tensile strengths of the C/SiC composite specimens with the same short carbon fiber volume fraction increase with the increasing of the impact pressure in the dynamic splitting tensile failure process, the failure of the specimens is significantly correlated with impact pressure and short carbon fiber volume fraction. When the short carbon fiber volume fraction is 16.0%, the tensile strength of the C/SiC composite specimens is the lowest. After the impact, the overall destruction of the C/SiC composite specimens is related to impact pressure and short carbon fiber volume fraction.
- short cut carbon fiber,
- volume fraction,
- ceramic matrix composites,
- dynamic splitting tensile test,
- split Hopkinson pressure bar

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