Effect of fatigue strain range on properties of high-strength structural steel

被引：11
作者：
Grenier, D. [1 ]
Das, S. [2 ]
Hamdoon, M. [3 ]
机构：
[1] Univ Western Ontario, Dept Civil & Environm Engn, London, ON N6A 3K7, Canada
[2] Univ Windsor, Dept Civil & Environm Engn, Windsor, ON N9B 3P4, Canada
[3] Univ Windsor, Dept Mech Automot & Mat Engn, Windsor, ON N9B 3P4, Canada
来源：
MARINE STRUCTURES | 2010年 / 23卷 / 01期
关键词：
Fatigue damage; Strain range; Mechanical properties; High-strength steel;
D O I：
10.1016/j.marstruc.2010.01.002
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
Ship hulls are built with stiffened steel plates and experience continuous fatigue load cycles when in service. Mechanical properties of the steel are expected to change due to the application of these cyclic loads. Therefore, the mechanical properties of the material at various levels of fatigue damage need to be understood. This paper presents two test series that were conducted to determine the effect of two different strain ranges (2000 and 3000 micro strains) of fatigue cycles on the mechanical properties of high-strength structural steel. The test results indicate that the cycle-dependent behaviours of the material can cause a slight increase or a significant decrease in the yield strength when compared to its virgin state. However, the ductility of the steel does not change much as the strain cycle increases. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：88 / 102
页数：15
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