Mechanical test study on corroded marine high performance steel under cyclic loading

被引：29
|
作者：
Jia Ziyue [1 ,2 ]
Yang, Yang [1 ]
Zheng, He [3 ]
Ma Houbiao [4 ]
Fei, Ji [1 ]
机构：
[1] Dalian Univ Technol, Sch Naval Architecture & Ocean Engn, Dalian, Liaoning, Peoples R China
[2] Dalian Maritime Safety Adm Peoples Republ China, Dalian, Liaoning, Peoples R China
[3] Dalian Univ Technol, Sch Civil Engn, Dalian, Liaoning, Peoples R China
[4] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dept Engn Mech, Int Ctr Computat Mech, Dalian, Liaoning, Peoples R China
来源：
APPLIED OCEAN RESEARCH | 2019年 / 93卷
关键词：
Marine high performance steel; Corrosion damage; Cumulative fatigue damage; Double damage; STRUCTURAL-STEEL; MODEL;
D O I：
10.1016/j.apor.2019.101942
中图分类号：
P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
It is inevitable that marine structures suffer from corrosion and extreme cyclic loading. In order to study the influence of corrosion damage and cumulative fatigue damage on mechanical properties of marine steel, high performance steel NV-D36 was analyzed under electrochemical corrosion and cyclic loading. It was found that corrosion damage can reduce the elastic modulus, yield strength, ultimate stress and ultimate strain of steel NV-D36. And it was also found that cumulative fatigue damage will increase the ultimate stress of steel NV-D36 and reduce the ultimate strain of steel NV-D36. The effect of double damage on mechanical properties of steel NV-D36 was coupled with these two kinds of damage. The Chaboche model parameters calibrated under incremental cyclic loading scheme can exactly describe the stiffness and peak stress of steel NV-D36.
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页数：12
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