On matrix crack evolution of cross-ply ceramic matrix composite

摘要：

The matrix crack evolution of cross-ply ceramic matrix composites under uniaxial tensile loading has been investigated using the energy balance method. When cross-ply ceramic matrix composites are under tensile loading, transverse cracking in 90° ply and matrix cracking in 0° ply occur. The damage states in cross-ply laminates can be classified into five modes. The cracking mode 3 contains transverse cracking, matrix cracking and fiber/matrix interface debonding. The cracking mode 5 only contains matrix cracking and fiber/matrix interface debonding. The cracking stress of mode 3 and 5 appearing between two existing transverse crack is determined. And the multiple matrix crack evolution of mode 3 has been determined. The effects of ply thickness, fiber volume fraction, interface shear stress and interface debonded energy on the cracking stress and matrix crack evolution have been analyzed.

关键词： cross-ply ceramic matrix composites cross-ply matrix crack evolution energy balance approach

作者: Yang Fushu Sun Zhigang Li Longbiao Song Yingdong

作者单位: College of Energy and Power Engineer Nanjing University of Aeronautics and Astronautics No.29, Yudao Street, Nanjing, P.R.China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Jet Propulsion and Power Engineering(第三届喷气推进与动力工程国际会议 ISJPPE)

会议地点: 南京

会议语种:英文

页码: 453-459

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）