Constraint Assessment for Specimens Tested Under Uniaxial and Biaxial Loading Conditions | |
Cao YP; Qian GA(钱桂安); He Yinbiao; Niffenegger Markus; Chao Yuh J. | |
刊名 | JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME |
2018-06-01 | |
卷号 | 140期号:3 |
ISSN号 | 0094-9930 |
DOI | 10.1115/1.4039346 |
文献子类 | Article |
英文摘要 | In structural integrity analysis of reactor pressure vessels (RPVs), a postulated shallow crack is subjected to biaxial far-field stresses. However, the fracture toughness K-c or J(c), which is an important material property for the structural integrity assessment of RPVs, is usually obtained from testing deeply cracked compact tension (C(T)) or single-edged bending (SE(B)) specimens under uniaxial loading. Thus, the fracture toughness data do not reflect the biaxial loading state that cracks in a RPV are subjected to. Cruciform bending specimen was therefore developed to simulate the biaxial stress state. In this paper, a series of finite element (FE) simulations of the cruciform specimens containing different crack geometries and of different material properties are conducted. The crack tip stress fields are analyzed, and the constraint is investigated using the J-A(2) theory. The results show that the biaxial effect is material property dependent which could be useful for the optimization of the test method and the better design of cruciform specimens. The trends about the biaxial loading effect revealed in this study would also be helpful in estimating the safe operating life of RPVs. |
分类号 | Q3 |
WOS关键词 | LAW HARDENING MATERIAL ; CRACK-TIP ; FRACTURE ASSESSMENT ; FIELDS |
WOS研究方向 | Engineering |
语种 | 英语 |
WOS记录号 | WOS:000431719000007 |
资助机构 | Major Program of Large-Scale Advanced PWR and HTGR Nuclear Power Plant of China(2014ZX06002001) ; PROBAB Project by the Swiss Federal Nuclear Safety Inspectorate (ENSI) (DIS-Vertrag)(H-100668) |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/77484] |
专题 | 力学研究所_非线性力学国家重点实验室 |
推荐引用方式 GB/T 7714 | Cao YP,Qian GA,He Yinbiao,et al. Constraint Assessment for Specimens Tested Under Uniaxial and Biaxial Loading Conditions[J]. JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME,2018,140(3). |
APA | Cao YP,钱桂安,He Yinbiao,Niffenegger Markus,&Chao Yuh J..(2018).Constraint Assessment for Specimens Tested Under Uniaxial and Biaxial Loading Conditions.JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME,140(3). |
MLA | Cao YP,et al."Constraint Assessment for Specimens Tested Under Uniaxial and Biaxial Loading Conditions".JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME 140.3(2018). |
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