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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
Source PublicationCOMPUTERS AND CONCRETE
Volume21Issue:2Pages:181-187
SubtypeArticle
AbstractIn 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.
KeywordCorrosion Current Density Marginal Distribution Function Joint Distribution Function Frank-copula Function Life Prediction
WOS HeadingsScience & Technology ; Technology
WOS KeywordPERFORMANCE
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Construction & Building Technology ; Engineering ; Materials Science
WOS SubjectComputer Science, Interdisciplinary Applications ; Construction & Building Technology ; Engineering, Civil ; Materials Science, Characterization & Testing
WOS IDWOS:000429257800008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6447
Collection青海盐湖研究所知识仓储
Affiliation1.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
Recommended Citation
GB/T 7714
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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