Fatigue Life Prediction of Prefatigued Welded Q235 Steel Butt-Joints Treated by High Frequency Mechanical Impact

Fatigue tests were performed to investigate the effect of fatigue preloads on the fatigue life of welded Q235B steel butt-joints treated with high-frequency mechanical impact (HFMI). Then, the effect of two consecutive HFMI treatments on the fatigue life enhancement of prefatigued welded butt joints...

Full description

Saved in:
Bibliographic Details
Published in:International journal of steel structures 2024, 24(4), , pp.839-848
Main Authors: Li, Tao, Zhang, Chao, Huang, Guotai, Feng, Liuyang
Format: Article
Language:English
Subjects:
Butt joints
Carbon steels
Civil Engineering
Engineering
Fatigue life
Fatigue tests
Killed steels
Life prediction
Materials Science
Metal fatigue
Parameter estimation
Solid Mechanics
Structural steels
Welding parameters
토목공학
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fatigue tests were performed to investigate the effect of fatigue preloads on the fatigue life of welded Q235B steel butt-joints treated with high-frequency mechanical impact (HFMI). Then, the effect of two consecutive HFMI treatments on the fatigue life enhancement of prefatigued welded butt joints was investigated. The total fatigue life of prefatigued specimens decreases as the fatigue preload cycles increase and two repeated HFMI treatments have an insignificant effect further to enhance the fatigue life of the prefatigued specimens. Finally, based on the experimental results, a two-parameter approach is proposed to estimate the total fatigue life of the impacted prefatigued butt joints.
ISSN:1598-2351
2093-6311
DOI:10.1007/s13296-024-00861-4