EXPERIMENTAL STUDIES OF STRAIN AND DAMAGE AROUND NOTCHES IN C/SIC COMPOSITE

摘要：

Strain distribution in C/SiC composite containing double edge-notch subject to tensile load was monitored by phase-shifting moiré technique.Tensile strain concentrations and shear strain concentration between the notches have been established.The results indicate that both shear damage band and the tensile inelastic deformation contribute to the notch insensitivity of C/SiC composite.The shear damage band plays a key role.It can reduce the geometrical discontinuity of the notches,and the tensile strain concentration at the notch tip is reduced nearly to their net section magnitudes.The tensile inelastic deformations of C/SiC composites can cause the tensile stress concentrations to be lower than the tensile strain concentrations.

关键词： Composite Ceramic Damage Moire interferometry

作者: Xiong Wei Jiao Gui-qiong Liu Hong-xia

作者单位: School of Mechanics,Civil Engineering & Architecture,Northwestern Polytechnical University,XiAn,710 Department of Building Engineering,Xian Technological University,XiAn,710072,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 1165-1168

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）