Mechanical properties and damage process of a three-dimensional woven ceramic composite under in-plane shear loading

作者：Chang Yan Jun^*; Jiao Gui Qiong; Wang Bo; Guan Guo Yang; Lu Zhi Xian

来源：Journal of Inorganic Materials, 2007, 22(1): 113-118.

• ceramic composites
• 3D woven
• damage model
• critical strain

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.

• 出版日期2007-1
• 单位西北工业大学