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Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function
Feng, Qiong1; Qiao, Hongxia1,2; Wang, Penghui1; Gong, Wei3
2018-02-01
发表期刊COMPUTERS AND CONCRETE
卷号21期号:2页码:181-187
文章类型Article
摘要In order to solve the life prediction problem of damaged coating steel bar in magnesium cement concrete, this study tries to establish the marginal distribution function by using the corrosion current density as a single degradation factor. Representing the degree of steel corrosion, the corrosion current density were tested in electrochemical workstation. Then based on the Copula function, the joint distribution function of the damaged coating was established. Therefore, it is indicated that the corrosion current density of the bare steel and coated steel bar can be used as the boundary element to establish the marginal distribution function. By using the Frank-Copula function of Copula Archimedean function family, the joint distribution function of the damaged coating steel bar was successfully established. Finally, the life of the damaged coating steel bar has been lost in 7320d. As a new method for the corrosion of steel bar under the multi-dimensional factors, the two-dimensional Copula function has certain practical significance by putting forward some new ideas.
关键词Corrosion Current Density Marginal Distribution Function Joint Distribution Function Frank-copula Function Life Prediction
WOS标题词Science & Technology ; Technology
关键词[WOS]PERFORMANCE
收录类别SCI
语种英语
WOS研究方向Computer Science ; Construction & Building Technology ; Engineering ; Materials Science
WOS类目Computer Science, Interdisciplinary Applications ; Construction & Building Technology ; Engineering, Civil ; Materials Science, Characterization & Testing
WOS记录号WOS:000429257800008
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6447
专题青海盐湖研究所知识仓储
作者单位1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Gansu, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China
3.Nanjing Univ Aeronaut & Astronaut, Dept Civil Engn, Nanjing 20016, Jiangsu, Peoples R China
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Feng, Qiong,Qiao, Hongxia,Wang, Penghui,et al. Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function[J]. COMPUTERS AND CONCRETE,2018,21(2):181-187.
APA Feng, Qiong,Qiao, Hongxia,Wang, Penghui,&Gong, Wei.(2018).Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function.COMPUTERS AND CONCRETE,21(2),181-187.
MLA Feng, Qiong,et al."Prediction of steel corrosion in magnesium cement concrete based on two dimensional Copula function".COMPUTERS AND CONCRETE 21.2(2018):181-187.
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