中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A continuum fatigue damage model for the cyclic thermal shocked ceramic-matrix composites

文献类型:期刊论文

作者Yang ZM(杨正茂)2; Liu H1
刊名INTERNATIONAL JOURNAL OF FATIGUE
出版日期2020-05-01
卷号134页码:11
ISSN号0142-1123
关键词Ceramic-matrix composites (CMCs) Fatigue modeling Damage accumulation Plastic deformation
DOI10.1016/j.ijfatigue.2020.105507
英文摘要

In the present work, the tension-compression fatigue behavior of the 2-D woven oxide/oxide-ceramic-matrix composites is investigated. Experimental investigations reveal different fatigue failure mechanism for the original and the cyclic thermal shocked ox/ox-CMCs, and both materials undergo cyclic softening in the whole loading history. Based on the decrease of the elastic modulus, a new fatigue damage model is proposed to characterize the fatigue damage evolution and predict the fatigue life of both the original and the cyclic thermal shocked ox/ox-CMCs. The total damage is separated into the thermal stress-related damage from thermal shocks and the fatigue damage from applied mechanical loads. The good agreement between the proposed model and experimental data indicates that the damage model has the potential to describe complex thermomechanical damage of the ox/ox-CMCs under coupled cyclic thermal shocks and mechanical loading.

学科主题疲劳 ; 损伤力学
分类号一类
WOS关键词THERMOMECHANICAL DAMAGE ; LIFE PREDICTION ; BEHAVIOR ; EVOLUTION
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100] ; National Natural Science Foundation of China[11572169] ; National Natural Science Foundation of China[51775294]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000518708500035
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
其他责任者杨正茂
源URL[http://dspace.imech.ac.cn/handle/311007/81786]  
专题空天飞行科技创新研究中心(筹)
通讯作者Yang ZM(杨正茂)
作者单位1.Tsinghua Univ, Sch Aerosp Engn, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Yang ZM,Liu H. A continuum fatigue damage model for the cyclic thermal shocked ceramic-matrix composites[J]. INTERNATIONAL JOURNAL OF FATIGUE,2020,134:11.
APA Yang ZM,&Liu H.(2020).A continuum fatigue damage model for the cyclic thermal shocked ceramic-matrix composites.INTERNATIONAL JOURNAL OF FATIGUE,134,11.
MLA Yang ZM,et al."A continuum fatigue damage model for the cyclic thermal shocked ceramic-matrix composites".INTERNATIONAL JOURNAL OF FATIGUE 134(2020):11.

入库方式: OAI收割

来源:力学研究所

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