Effect of fatigue load on the bending tribo-corrosion-fatigue behaviors between the main cable wires  

作　　者：Bo WANG Dagang WANG Jihong YE Liang TANG Hailang CHONG Wei XU Xinxin ZHANG Jianhao CHEN Haiyan DENG Jie ZHANG Guowen YAO Magd Abdel WAHAB 

机构地区：[1]School of Mechatronic Engineering,China University of Mining and Technology,Xuzhou 221116,China [2]Xuzhou Key Laboratory for Fire Safety of Engineering Structures,China University of Mining and Technology,Xuzhou 221116,China [3]National Wire Rope Quality Inspection Center,Nantong Product Quality Supervision and Inspection Institute,Nantong 226011,China [4]Jiangsu Langshan Wire Rope Co.,Ltd.,Nantong 226003,China [5]School of Mechatronic Engineering,Southwest Petroleum University,Chengdu 610500,China [6]School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China [7]Soete Laboratory,Faculty of Engineering and Architecture,Ghent University,Zwijnaarde B-9052,Belgium

出　　处：《Friction》2024年第7期1512-1531,共20页摩擦（英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.52175205 and 51875565);the Chinese Postdoctoral Science Foundation(Grant Nos.2019M652001 and 2020T130695)。

摘　　要：The main cable bent around the saddle of the suspension bridge is subjected to the wind,the vehicle,the bridge’s own weight and the corrosive media.The coupling of the three loads and the environments causes the friction,the corrosion,and the fatigue(tribo-corrosion-fatigue)among the wires inside the main cable.In this paper,a wire bending tribo-corrosion-fatigue test rig was designed and developed.The effect of fatigue load on the bending friction behaviors between the cable wires in ultrapure water and 3.5%NaCl solution was explored.The tribological properties and electrochemical corrosion behaviors under different fatigue loading ranges were investigated.The tribo-corrosion-fatigue interaction between the cable wires was quantitatively characterized,and the mechanism of the interaction was analyzed.The results demonstrate that the increasing fatigue load exacerbates the coupling damage of the cable wires attributed to the enhanced interaction.The findings carry theoretical importance when assessing the main cable’s deterioration and the load-bearing safety of a suspension bridge.

关 键 词：BENDING tribo-corrosion-fatigue INTERACTION parallel steel wires fatigue load 

分 类 号：TH117[机械工程—机械设计及理论]