A micromechanical damage model for oxide/oxide ceramic matrix composites with hierarchical porosity under thermomechanical loading

doi:10.1016/j.ceramint.2022.03.123

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	A micromechanical damage model for oxide/oxide ceramic matrix composites with hierarchical porosity under thermomechanical loading
	Yang, Zheng-Mao 4; Yan, Han 3; Yang, Jun-Jie 1; Li, Xiao 2
刊名	CERAMICS INTERNATIONAL
	2022-07-01
卷号	48 期号:13 页码:18530-18540
关键词	Ceramic matrix composites Hierarchical porosity Micromechanical damage Thermomechanical behaviors
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2022.03.123
通讯作者	Yang, Zheng-Mao(zmyang@imech.ac.cn) ; Li, Xiao(laughli1985@126.com)
英文摘要	This work presents a micromechanical damage model to describe the microstructural damage behaviors of ceramic matrix composites with hierarchical porosity during thermomechanical loading. The microstructure evolution may cause the nonlinear constitutive behavior, and a hierarchical porosity-based elasto-plastic constitutive model was developed. Damage mechanisms of matrix-crack, hierarchical pore nucleation and fiber breaking are incorporated into the formulation of the damage model to describe various micromechanical damage modes of ceramic matrix composites accurately. Two damage variables are proposed for the damage evolution of matrix and fiber bundles. The main damage mechanisms in the matrix are matrix-cracking, and fibers breaking in the fiber bundles. The performance of the proposed damage model is verified by comparing with the existing experimental data. The proposed damage model outperforms the existing counterparts by capturing the microstructural damage mechanism and integrated into the damage model, and the contribution of different damage mechanisms can be quantified. The present work will provide a robust tool for describing the damage behaviors of matrix and fiber bundles in the ceramic matrix composites under thermomechanical loading, as well as allow a more accurate characterization of microstructural damage for a large extent of ceramic matrix composites.
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	ELASTIC PROPERTIES ; BEHAVIOR
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000807164500002
资助机构	National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89615]
专题	宽域飞行工程科学与应用中心
通讯作者	Yang, Zheng-Mao; Li, Xiao
作者单位	1.Tsinghua Univ, Inst Aero Engine, Beijing 100084, Peoples R China 2.China Acad Space Technol, Beijing Spacecrafts, Beijing 100094, Peoples R China 3.Tsinghua Univ, Sch Aerosp Engn, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yang, Zheng-Mao,Yan, Han,Yang, Jun-Jie,et al. A micromechanical damage model for oxide/oxide ceramic matrix composites with hierarchical porosity under thermomechanical loading[J]. CERAMICS INTERNATIONAL,2022,48(13):18530-18540.
APA	Yang, Zheng-Mao,Yan, Han,Yang, Jun-Jie,&Li, Xiao.(2022).A micromechanical damage model for oxide/oxide ceramic matrix composites with hierarchical porosity under thermomechanical loading.CERAMICS INTERNATIONAL,48(13),18530-18540.
MLA	Yang, Zheng-Mao,et al."A micromechanical damage model for oxide/oxide ceramic matrix composites with hierarchical porosity under thermomechanical loading".CERAMICS INTERNATIONAL 48.13(2022):18530-18540.