Micro-porosity as damage indicator for characterizing cyclic thermal shock-induced anisotropic damage in oxide/oxide ceramic matrix composites
文献类型：期刊论文
| 作者 | Yang ZM(杨正茂)2 ; Liu H1; Yuan H1
|
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2019-10-15 |
| 卷号 | 220页码:11 |
| ISSN号 | 0013-7944 |
| 关键词 | Ceramic matrix composite Cyclic thermal shock Micromechanical damage Thermo-mechanical damage Hierarchical porosity |
| DOI | 10.1016/j.engfracmech.2019.106669 |
| 通讯作者 | Yuan, Huang(yuan.huang@tsinghua.edu.cn) |
| 英文摘要 | Ceramic matrix composites display complex mechanical behavior under thermo-mechanical loading conditions. The present work focuses on micro-structural evolution and resultant macroscopic property representation of the composites after cyclic thermal shocks. Micro-structural investigation reveals that variations of the hierarchical porosity in the matrix characterize the collective behavior of micro-structural evolution in the material. Cyclic thermal shocks induce thermo-mechanical damage and lead to increasing matrix porosity. Material damage development is driven by elastic strain energy density which is related to the matrix porosity increment. Experiments confirm that the anisotropic damage can be represented by the porosity increment accurately. The porosity provides a meaningful model for the thermal shock damage evolution in the anisotropic composites. |
| 分类号 | 二类/Q1 |
| WOS关键词 | POROUS SINTERED METALS ; THERMOMECHANICAL DAMAGE ; OXIDE FIBERS ; BEHAVIOR ; PERFORMANCE ; EVOLUTION ; CRACKING ; FATIGUE ; MODEL |
| 资助项目 | China Natural Science Foundation[11572169] ; China Natural Science Foundation[51775294] |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000487813100019 |
| 资助机构 | China Natural Science Foundation |
| 其他责任者 | Yuan, Huang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/80646]  |
| 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,Liu H,Yuan H. Micro-porosity as damage indicator for characterizing cyclic thermal shock-induced anisotropic damage in oxide/oxide ceramic matrix composites[J]. ENGINEERING FRACTURE MECHANICS,2019,220:11. |
| APA | 杨正茂,Liu H,&Yuan H.(2019).Micro-porosity as damage indicator for characterizing cyclic thermal shock-induced anisotropic damage in oxide/oxide ceramic matrix composites.ENGINEERING FRACTURE MECHANICS,220,11. |
| MLA | 杨正茂,et al."Micro-porosity as damage indicator for characterizing cyclic thermal shock-induced anisotropic damage in oxide/oxide ceramic matrix composites".ENGINEERING FRACTURE MECHANICS 220(2019):11. |
入库方式： OAI收割
来源：力学研究所
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