Specimen size effect on the ductile-brittle transition reference temperature of A508-3 steel | |
Zhou ZY1; Tong ZF1; Qian GA(钱桂安)3; Berto F2 | |
刊名 | THEORETICAL AND APPLIED FRACTURE MECHANICS |
2019-12-01 | |
卷号 | 104页码:8 |
关键词 | Reactor pressure vessel steel Fracture toughness Ductile-brittle transition reference temperature Size effect J-Q theory |
ISSN号 | 0167-8442 |
DOI | 10.1016/j.tafmec.2019.102370 |
通讯作者 | Tong, Zhenfeng(tony_tzf@163.com) ; Qian, Guian(qianguian@imech.ac.cn) |
英文摘要 | Fracture toughness is a key parameter for evaluating the structural integrity of reactor pressure vessels (RPV). In this paper, fracture toughness K-Jc of different sized RPV specimens is tested at different temperatures. Master Curve method was used to model K-Jc and the ductile-brittle transition reference temperature T-0 is obtained. It is shown that the smaller the specimen size is, the lower the T-0 value is. The small specimen is not able to completely replace the standard 1CT specimen in the irradiation surveillance program to obtain T-0 and material toughness. J-Q theory is employed to study size effect and crack tip constraint effect on K-Jc. It is shown that Q (constraint) decreases as the specimen size decreases. A prediction model to transfer the reference temperature T-0 of different specimens is developed considering constraint effect by means of Q. |
分类号 | 二类 |
资助项目 | Large-scale Advanced PWR Nuclear Power Plant Major Projects[2018ZX06002008] ; National Natural Science Foundation of China[11872364] ; CAS Pioneer Hundred Talents Program |
WOS关键词 | TRIAXIALITY PARAMETER ; CRITICAL PLANE ; FRACTURE ; CONSTRAINT ; FAMILY ; MODEL |
WOS研究方向 | Engineering ; Mechanics |
语种 | 英语 |
WOS记录号 | WOS:000505101300031 |
资助机构 | Large-scale Advanced PWR Nuclear Power Plant Major Projects ; National Natural Science Foundation of China ; CAS Pioneer Hundred Talents Program |
其他责任者 | Tong, Zhenfeng ; Qian, Guian |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/81236] |
专题 | 力学研究所_非线性力学国家重点实验室 |
作者单位 | 1.China Inst Atom Energy, Beijing, Peoples R China; 2.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing, Peoples R China; |
推荐引用方式 GB/T 7714 | Zhou ZY,Tong ZF,Qian GA,et al. Specimen size effect on the ductile-brittle transition reference temperature of A508-3 steel[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2019,104:8. |
APA | Zhou ZY,Tong ZF,钱桂安,&Berto F.(2019).Specimen size effect on the ductile-brittle transition reference temperature of A508-3 steel.THEORETICAL AND APPLIED FRACTURE MECHANICS,104,8. |
MLA | Zhou ZY,et al."Specimen size effect on the ductile-brittle transition reference temperature of A508-3 steel".THEORETICAL AND APPLIED FRACTURE MECHANICS 104(2019):8. |
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