Quasi-static and dynamic compressive fracture behavior of SiCf/SiC composites

Xiaoju Gao, Laifei Cheng*, Dongming Yan, Liangjun Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

To understand the quasi-static and dynamic compressive mechanical behavior of two-dimensional SiC fiber-reinforced SiC composites (2D-SiCf/SiC), their compressive behavior at room temperature was investigated at a strain rate from 10−4 to 104 /s, and the fracture surfaces and damage morphology were observed. The results show that the dynamic failure strength of 2D-SiCf/SiC obeys the Weibull distribution, and the Weibull modulus is 5.66. Meanwhile, 2D-SiCf/SiC presents a transition from brittle to tough with a decrease of strain rate, and 2D-SiCf/SiC has a more significant strain rate sensitivity compared to the 2D-C/SiC composites. The failure mode of 2D-SiCf/SiC depends upon the strain rate.

Original languageEnglish (US)
Pages (from-to)484-488
Number of pages5
JournalJournal Wuhan University of Technology, Materials Science Edition
Volume30
Issue number3
DOIs
StatePublished - Jun 22 2015
Externally publishedYes

Keywords

  • 2D-SiC<inf>f</inf>/SiC
  • dynamic compressive
  • failure mode
  • SHPB
  • Weibull distribution

ASJC Scopus subject areas

  • Materials Science(all)

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