Monitoring Damage Accumulation in Continuous Fiber-Reinforced Ceramic-Matrix Composites with Different Fiber Preforms under Cyclic Loading Using Hysteresis-Based Damage Parameters
点击次数：
所属单位：民航学院
发表刊物：JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY
关键字：Ceramic-matrix composites (CMCs) damage accumulation matrix cracking interface debonding hysteresis loops
摘要：In this paper, the damage accumulation of continuous fiber-reinforced ceramic-matrix composites (CMCs) with different fiber preforms, i.e. 2D and 2.5D woven, 3D braided and needled C/SiC, 2D and 3D woven SiC/SiC composites, subject to cyclic tensile loading/unloading at room temperature has been investigated using the hysteresis-based damage parameters. Based on the damage mechanisms of matrix multiple cracking modes and relative frictional sliding between fibers and the matrix, the relationships between the hysteresis-based damage parameters and damage mechanisms of matrix cracking modes, fiber/matrix interface debonding/sliding have been established. The cydic tensile loading/unloading stress/strain hysteresis loops, matrix cracking mode ratio and fiber/matrix interface sliding ratio of 2D and 2.5D woven, 3D braided and needled C/SiC, and 2D and 3D woven SiC/SiC composites have been predicted for different peak stresses. The comparisons of damage accumulation between C/SiC and SiC/SiC composites with different fiber preforms under cyclic tensile loading/unloading have been analyzed.
ISSN号：2190-9385
是否译文：否
发表时间：2018-09-01
通讯作者：李龙彪
上一条：Synergistic effects of hold time and cyclic loading on fatigue hysteresis loops of fiber-reinforced ceramic-matrix composites at elevated temperatures in oxidizing atmosphere
下一条：Synergistic effects of temperature, oxidation, loading frequency and stress-rupture on damage evolution of cross-ply ceramic-matrix composites under cyclic fatigue loading at elevated temperatures in oxidizing atmosphere