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Mechanical behavior of woven CMCs under non-uniform stress and strain fields

文献类型：期刊论文

作者Yang ZM(杨正茂)1,4; Sun, Jing-Yu4; Yang, Jun-Jie3; Liu, Tian-Wei4; Liu, Hui2
刊名COMPOSITE STRUCTURES
出版日期2022-11-01
卷号299页码:10
ISSN号0263-8223
关键词Ceramic-matrix composites (CMCs) Non-uniform strain Finite element analysis Mechanical properties Weave architecture
DOI10.1016/j.compstruct.2022.116097
通讯作者Yang, Zheng-Mao(zmyang@imech.ac.cn)
英文摘要Woven ceramic matrix composites (CMCs) hot-section components will sustain spatially non-uniform stress and temperature fields in service, and the mechanical response in CMCs under inhomogeneous stress and strain fields remains indistinct. This study focuses on one noteworthy aspect of this issue: the effects of weave architecture on the mechanical response of CMCs under off-axis and thermomechanical loading. To this end, the stress and strain evolution of wavy tows in CMCs are investigated by establishing a meso-scale finite element model, which reflects the real weave architecture. Besides, the model is verified by comparing the predicted results with the experimental results of a representative woven CMC. The strain and stress concentrations appear at the location of tow cross-overs because of the bending and straightening of tows, resulting in the woven composites strength may be inferior to that of laminate composites. Although the scope of this work is limited to one type of weaving, it is expected that the modeling method can be useful in examining other types of weaving.
分类号一类
WOS关键词CERAMIC-MATRIX COMPOSITES ; THERMAL-SHOCK FRACTURE ; DAMAGE ; AXIS ; TENSILE ; PREDICTION ; POROSITY ; MODEL
资助项目National Natural Science Foundation of China (NSFC)[52105165] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100]
WOS研究方向Mechanics ; Materials Science
语种英语
WOS记录号WOS:000847857100001
资助机构National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of Chinese Academy of Sciences
其他责任者Yang, Zheng-Mao
源URL[http://dspace.imech.ac.cn/handle/311007/90018]  
专题宽域飞行工程科学与应用中心
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
2.Inst Astronaut Syst Engn, China Acad Launch Vehicle Technol, Beijing, Peoples R China;
3.Tsinghua Univ, Inst Aero Engine, Beijing, Peoples R China;
4.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China;
推荐引用方式
GB/T 7714		 Yang ZM,Sun, Jing-Yu,Yang, Jun-Jie,et al. Mechanical behavior of woven CMCs under non-uniform stress and strain fields[J]. COMPOSITE STRUCTURES,2022,299:10.
APA 杨正茂,Sun, Jing-Yu,Yang, Jun-Jie,Liu, Tian-Wei,&Liu, Hui.(2022).Mechanical behavior of woven CMCs under non-uniform stress and strain fields.COMPOSITE STRUCTURES,299,10.
MLA 杨正茂,et al."Mechanical behavior of woven CMCs under non-uniform stress and strain fields".COMPOSITE STRUCTURES 299(2022):10.

入库方式： OAI收割

来源：力学研究所

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