The mechanical behavior and damage process of a three-dimensional woven carbon/silicon carbide (C/SiC) composite under in-plane shear loading were investigated with IOSIPESCU specimens in relation with the failure mechanisms and the fiber architecture. The C/SiC composite exhibited several interesting features including an essentially non-linear stress-strain behavior and permanent deformations. The results show that the major damage mechanisms are matrix microcracks cracking, interface debonding and fiber breaking. The delamination cracks affect mainly the stress-strain behavior and the mechanical properties. A damage model is proposed based upon continuum damage mechanics to describe the damage evolution.
CHANG Yan-Jun
,
JIAO Gui-Qiong
,
WANG Bo
,
GUAN Guo-Yang
,
LU Zhi-Xian
. Mechanical Properties and Damage Process of a Three-dimensional Woven Ceramic Composite under In-plane Shear Loading[J]. Journal of Inorganic Materials, 2007
, 22(1)
: 113
-118
.
DOI: 10.3724/SP.J.1077.2007.00113
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