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 |
DOI | 10.1016/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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