A continuum damage mechanics model for 2-D woven oxide/oxide ceramic matrix composites under cyclic thermal shocks
文献类型：期刊论文
| 作者 | Yang ZM(杨正茂)2 ; Lui H1
|
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 46期号:5页码:6029-6037 |
| 关键词 | Ceramic matrix composites (CMCs) Thermal shock Mechanical properties Thermomechanical damage evolution Matrix cracks |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2019.11.060 |
| 通讯作者 | Yang, Zhengmao(zmyang@imech.ac.cn) |
| 英文摘要 | Oxide/oxide-ceramic matrix composites (ox/ox-CMCs) are excellent candidates for material applications in high-temperature and oxidizing environments, which exhibit complex couplings between the thermal and mechanical fields. Uniaxial tensile tests are conducted for 0 degrees/90 degrees and +/- 45 degrees fiber orientation of the thermal shocked ox/ox-CMCs. The study reveals that the anisotropy properties of the thermal shocked ox/ox-CMCs result in different degrees of thermomechanical damage, which are reflected in the degeneration of the modulus. Based on the detailed experiments and analysis, a cyclic thermal shock-induced thermomechanical damage model of the 2-D woven ox/ox-CMCs is proposed, incorporating two tensile scalar damage parameters, and one shear scalar damage parameter. The model will contribute to predicting the thermomechanical damage evolution throughout the composite structure under thermal transient conditions. In addition, the model was validated with numerical simulation to demonstrate the damage model performance, which is relatively crucial in damage tolerance analysis in the aeronautical industry. |
| 分类号 | 一类 |
| WOS关键词 | THERMOMECHANICAL DAMAGE ; ANISOTROPIC DAMAGE ; CONSTITUTIVE MODEL ; BEHAVIOR ; DEGRADATION ; 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 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000515196800061 |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China |
| 其他责任者 | Yang, Zhengmao |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/81586]  |
| 专题 | 空天飞行科技创新研究中心（筹） |
| 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,Lui H. A continuum damage mechanics model for 2-D woven oxide/oxide ceramic matrix composites under cyclic thermal shocks[J]. CERAMICS INTERNATIONAL,2020,46(5):6029-6037. |
| APA | 杨正茂,&Lui H.(2020).A continuum damage mechanics model for 2-D woven oxide/oxide ceramic matrix composites under cyclic thermal shocks.CERAMICS INTERNATIONAL,46(5),6029-6037. |
| MLA | 杨正茂,et al."A continuum damage mechanics model for 2-D woven oxide/oxide ceramic matrix composites under cyclic thermal shocks".CERAMICS INTERNATIONAL 46.5(2020):6029-6037. |
入库方式： OAI收割
来源：力学研究所
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