Damage evolution and fracture behavior of c/sic minicomposites with different interphases under uniaxial tensile load

Zhongwei Zhang*, Longbiao Li*, Zhaoke Chen

*此作品的通讯作者

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15 引用 (Scopus)

摘要

In this paper, the tensile damage and fracture behavior of carbon fiber reinforced silicon carbide (C/SiC) minicomposites with single-and multiple-layer interphases are investigated. The effect of the interphase on the tensile damage and fracture behavior of C/SiC minicomposites is analyzed. The evolution of matrix cracking under the tensile load of the C/SiC minicomposite with a notch is observed using the digital image correlation (DIC) method. The damage evolution process of the C/SiC minicomposite can be divided into four main stages, namely, (1) an elastic response coupled with partial re-opening of thermal microcracking; (2) multiple matrix microcracking perpendicular to the applied loading; (3) crack opening and related fiber/matrix, bundle/matrix, and inter-bundle debonding; and (4) progressive transfer of the load to the fibers and gradual fiber failure until composite failure/fracture. On the fracture surface, a large number of fibers pulling out of the samples with both single-layer and multi-layer interphases can be clearly observed.

源语言英语
文章编号1525
期刊Materials
14
6
DOI
出版状态已出版 - 2 3月 2021

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Zhang, Z., Li, L., & Chen, Z. (2021). Damage evolution and fracture behavior of c/sic minicomposites with different interphases under uniaxial tensile load. Materials, 14(6), 文章 1525. https://doi.org/10.3390/ma14061525