Fatigue damage of welded high-strength steel details improved by post-weld treatment subjected to critical cyclic loading conditions

•An overload sequence effect was observed in the local stress-strain response.•A compressive overload seemed to be detrimental for the HFMI treatment.•A tensile overload might indicate a potential benefit of HFMI.•Damage corresponded to 60, 73, 86% of improvement in details from AW to HFMI states.•T...

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Bibliographic Details
Published in:Engineering structures 2021-06, Vol.237, p.111928, Article 111928
Main Authors: Nazzal, Salim Sleiman, Mikkola, Eeva, Yıldırım, Halid Can
Format: Article
Language:English
Subjects:
Accessories
Butt joints
Compressive properties
Cyclic loads
Damage
Fatigue failure
Fatigue life
Fatigue strength improvement
Finite element modelling
High strength steels
High-frequency mechanical impact treatment (HFMI)
High-strength steel (HSS)
Mechanical properties
Overloading
Residual stress
Service loading
Strain hardening
Stress ratio
Stress relaxation
Variable amplitude loading
Welded joints
Welding
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Summary:•An overload sequence effect was observed in the local stress-strain response.•A compressive overload seemed to be detrimental for the HFMI treatment.•A tensile overload might indicate a potential benefit of HFMI.•Damage corresponded to 60, 73, 86% of improvement in details from AW to HFMI states.•The decrease in damage was faster for −1 
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2021.111928