A continuum damage mechanics model for 2-D woven oxide/oxide ceramic matrix composites under cyclic thermal shocks

doi:10.1016/j.ceramint.2019.11.060

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	A continuum damage mechanics model for 2-D woven oxide/oxide ceramic matrix composites under cyclic thermal shocks
	Yang ZM(杨正茂)2; Lui H 1
刊名	CERAMICS INTERNATIONAL
	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
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关键词	THERMOMECHANICAL DAMAGE ; ANISOTROPIC DAMAGE ; CONSTITUTIVE MODEL ; BEHAVIOR ; DEGRADATION ; EVOLUTION
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
内容类型	期刊论文
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.