Fatigue improvement of welded bridge details In stainless steel using High-Frequency Mechanical Impact treatment

被引：0
|
作者：
Al-Emrani, M. [1 ]
Shams-Hakimi, P. [1 ]
Schneider, C. [2 ]
Barsoum, Z. [3 ]
Groth, H. [4 ]
机构：
[1] Chalmers Univ Technol, Gothenburg, Sweden
[2] Swerea Kimab, Stockholm, Sweden
[3] Royal Inst Technol, Stockholm, Sweden
[4] Outokumpu, Degerfors, Sweden
来源：
MAINTENANCE, SAFETY, RISK, MANAGEMENT AND LIFE-CYCLE PERFORMANCE OF BRIDGES | 2018年
关键词：
JOINTS;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper reports the results from fatigue testing on welded non-load-carrying transverse attachments made of C-Mn (S460) and stainless (LDX2101) steels. The tests are done on 40 mm thick specimens in as-welded and HFMI-treated specimens. Measurements on weld toe radius and weld residual stresses are also reported. The results show that the improvement of fatigue strength that can be achieved by HFMI-treatment on welded LDX2101 steel is similar to what is obtained for equivalent C-Mn steels. Also in the as-welded condition do these two types of steel show similar fatigue strength. HFMI-treatment gives more than 5 steps increase in fatigue strength for both steels, which is higher than what specified, for example by the recommendations of the International Institute of Welding.
引用
收藏
页码：446 / 451
页数：6
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