Mechanical behavior of woven CMCs under non-uniform stress and strain fields | |
Yang ZM(杨正茂)1,4; Sun, Jing-Yu4; Yang, Jun-Jie3; Liu, Tian-Wei4; Liu, Hui2 | |
刊名 | COMPOSITE STRUCTURES |
2022-11-01 | |
卷号 | 299页码:10 |
关键词 | Ceramic-matrix composites (CMCs) Non-uniform strain Finite element analysis Mechanical properties Weave architecture |
ISSN号 | 0263-8223 |
DOI | 10.1016/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 |
资助项目 | National Natural Science Foundation of China (NSFC)[52105165] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100] |
WOS关键词 | CERAMIC-MATRIX COMPOSITES ; THERMAL-SHOCK FRACTURE ; DAMAGE ; AXIS ; TENSILE ; PREDICTION ; POROSITY ; MODEL |
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 |
内容类型 | 期刊论文 |
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. |
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