Modeling matrix cracking of fiber-reinforced ceramic-matrix composites under oxidation environment at elevated temperature

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• 作者：Li Longbiao ^{llb451@nuaa.edu.cn}
• 关键词：Ceramic-matrix composites (CMCs) ; Matrix cracking ; Oxidation ; Interface shear stress
• 刊名：Theoretical and Applied Fracture Mechanics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：87
• 期：Complete
• 页码：110-119
• 全文大小：2409 K
• 卷排序：87

文摘

The matrix cracking stress of fiber-reinforced ceramic-matrix composites (CMCs) has been investigated using energy balance approach considering oxidation at elevated temperatures. The relationships between matrix cracking stress, interface debonding and slipping, oxidation temperature and time have been established. The effects of fiber volume fraction, interface properties, oxidation temperature on the evolution of matrix cracking stress versus oxidation time have been analyzed. The matrix cracking stresses of C/SiC with strong and weak interface bonding after unstressed oxidation at 700 °C in air have been predicted for different oxidation time.