Evaluating Young's modulus of porous nuclear graphite by a novel multi-scale method
文献类型：期刊论文
| 作者 | Yang, X; Tsang, DKL |
| 刊名 | JOURNAL OF MATERIALS SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 52期号:17页码:10959-10971 |
| 关键词 | Engineering Test Reactor Thermal-expansion Grade Graphite Porosity Simulation Element |
| ISSN号 | 1573-4803 |
| DOI | 10.1007/s10853-017-1259-3 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Nuclear graphite has served as neutron moderator, reflector and structural material in various nuclear reactors due to its excellent irradiation performance and mechanical properties at high temperature. However, the microstructure of nuclear graphite contains over 10% porosity by volume. During the lifetime of reactors, the porosity of nuclear graphite will be increased due to the irradiation-induced volume changes and/or radiolytic oxidation. Consequently, it is important to predict the effect of porosity on the mechanical properties of nuclear graphite. In this paper, a novel multi-scale method was used to study the effect of porosity on Young's modulus. Numerical results suggested that Young's modulus versus porosity can be predicted by the Knudsen law. Then, the influence of different pore distributions on Young's modulus was analysed. Finally, Young's modulus with different pore sizes and the effect of pore shape were studied. And a relationship between decay coefficients in the Knudsen law and the pore shape ratios was found. |
| WOS关键词 | ENGINEERING TEST REACTOR ; THERMAL-EXPANSION ; GRADE GRAPHITE ; POROSITY ; SIMULATION ; ELEMENT |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/28645]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Yang, X,Tsang, DKL. Evaluating Young's modulus of porous nuclear graphite by a novel multi-scale method[J]. JOURNAL OF MATERIALS SCIENCE,2017,52(17):10959-10971. |
| APA | Yang, X,&Tsang, DKL.(2017).Evaluating Young's modulus of porous nuclear graphite by a novel multi-scale method.JOURNAL OF MATERIALS SCIENCE,52(17),10959-10971. |
| MLA | Yang, X,et al."Evaluating Young's modulus of porous nuclear graphite by a novel multi-scale method".JOURNAL OF MATERIALS SCIENCE 52.17(2017):10959-10971. |
入库方式： OAI收割
来源：上海应用物理研究所
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