Subcycle corrosion fatigue crack growth model for bridge suspender wires under random time-series loads

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成果类型：

期刊论文

作者：

Ma, Yafei;Zhou, Hao;He, Yu;Li, Xiang;Wang, Lei

通讯作者：

Wang, L

作者机构：

[Zhou, Hao; Ma, Yafei; Wang, Lei; Li, Xiang] Changsha Univ Sci & Technol, Sch Civil Engn, Changsha 410114, Hunan, Peoples R China.

[Ma, Yafei; Wang, Lei] Changsha Univ Sci & Technol, Key Lab Bridge Engn Safety Control, Minist Educ, Changsha 410114, Hunan, Peoples R China.

[He, Yu] Guilin Univ Technol, Guangxi Key Lab Green Bldg Mat & Construct Ind, Guilin 541004, Guangxi, Peoples R China.

通讯机构：

[Wang, L ] C

Changsha Univ Sci & Technol, Sch Civil Engn, Changsha 410114, Hunan, Peoples R China.

Changsha Univ Sci & Technol, Key Lab Bridge Engn Safety Control, Minist Educ, Changsha 410114, Hunan, Peoples R China.

语种：

英文

关键词：

Bridge suspender;Fatigue crack growth;Corrosion;Random load;Life prediction

期刊：

Engineering Failure Analysis

ISSN：

1350-6307

年：

2025

卷：

169

页码：

109183

DOI：

10.1016/j.engfailanal.2024.109183

基金类别：

CRediT authorship contribution statement Yafei Ma: Writing – review & editing, Supervision, Methodology, acquisition, Conceptualization. Hao Zhou: Writing – original draft, Software, Investigation, Data curation. Yu He: Writing – review & editing. Xiang Li: Writing – review & editing. Lei Wang: Writing – review & editing, Methodology, acquisition.

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

摘要：

A damage assessment method for bridge suspender wires subjected to random variable loads is proposed using a subcycle corrosion fatigue crack growth (CFCG) model. The CFCG analysis is conducted by tracking crack tip opening displacement (CTOD) and crack tip plastic zone size in the time-series loading history. The coupling mechanism between corrosion pit growth and CFCG on a time scale is developed based on the rate competition principle. Following this, a corrosion fatigue life prediction model is established by integrating corrosion fatigue damage size including pit depth and crack length. T...

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Subcycle corrosion fatigue crack growth model for bridge suspender wires under random time-series loads

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