Modeling thermomechanical fatigue hysteresis loops of long-fiber-reinforced ceramic-matrix composites under out-of-phase cyclic loading condition
点击次数：
所属单位：民航学院
发表刊物：INTERNATIONAL JOURNAL OF FATIGUE
关键字：Ceramic-matrix composites (CMCs) Airworthiness Thermomechanical fatigue Hysteresis loops Interface shear stress
摘要：In this paper, the thermomechanical fatigue hysteresis loops of long-fiber-reinforced ceramic -matrix composites(CMCs) subjected to out-of-phase (OP) cyclic loading have been investigated using the micromechanical approach. The fiber/matrix interface shear stress is determined as a function of the testing temperature and material properties, which affects the matrix multicracIdng and fiber/matrix interface debonding and sliding upon unloading and reloading. The relationships between the cyclic temperature and stress level, matrix multicracking, interface debonding and sliding, and the shape, location and the area of the thermomechanical fatigue hysteresis loops have been established. The effects of the fiber volume fraction, fatigue peak stress, matrix cracking space, fiber/matrix interface debonded energy and cyclic temperature range on the thermomechanical fatigue hysteresis loops subjected to out-of-phase cyclic loading have been analyzed. The differences of the thermomechanical fatigue hysteresis loops, interface debonding and sliding between the out-of-phase (OP) and in-phase (IF) thermomechanical cyclic loading have been analyzed. The thermomechanical fatigue hysteresis loops of cross ply SiC/MAS composite under out-of-phase tension-tension cyclic loading have been predicted. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN号：0142-1123
是否译文：否
发表时间：2017-12-01
通讯作者：李龙彪
上一条：Synergistic effects of temperature, oxidation, and stress level on fatigue hysteresis behavior of cross-ply ceramic-matrix composites at room and elevated temperatures under cyclic loading
下一条：Damage monitor and life prediction of carbon fiber-reinforced ceramic-matrix composites at room and elevated temperatures using hysteresis dissipated energy-based damage parameter