A new proposal for assessment of the fatigue strength of steel butt-welded joints improved by peening (HFMI) under constant amplitude tensile loading

2015 ◽  
Vol 39 (5) ◽  
pp. 566-582 ◽  
Author(s):  
T. Nykänen ◽  
T. Björk
Keyword(s):  
Fatigue Strength ◽  
Welded Joints ◽  
Tensile Loading ◽  
Constant Amplitude

Fatigue tests on fillet welded joints to assess the validity of Miner’s cumulative damage rule

1983 ◽  
Vol 386 (1791) ◽  
pp. 393-408 ◽  
Keyword(s):  
Welded Joints ◽  
Tensile Loading ◽  
Load Cycle ◽  
Fatigue Tests ◽  
Constant Amplitude ◽  
Reasonable Accuracy ◽  
Simple Loading ◽  
Secondary Load ◽  
Load Carrying ◽  
Damage Rule

Fatigue tests have been made on longitudinal non-load-carrying fillet welded joints using simple loading sequences in which each constant amplitude load cycle had secondary load cycles of one or two magnitudes appended to it. The tests have involved both as-welded and stress relieved specimens, and have been made under both tensile and alternating loading. In some instances, particularly under tensile loading, it was expected that stress interaction would occur so as to give values of Ʃ n / N > 1. However, Ʃ n / N was, in almost every case, less than 1.0 (i. e. Miner’s rule was unsafe). Based upon an empirical fit of an equation to one of the early sets of results, it proved possible to predict the remainder of the results with reasonable accuracy, and it has been shown that this approach can be formalized into a rule that would be relatively easy to apply in practice (equation (21)).

Residual Stress Release and Its Effects on the Fatigue Strength of Typical Welded Joints in Cone-Cylinder Pressure Structures

2021 ◽  
Vol 111 ◽  
pp. 102673
Author(s):  
Liangbi Li ◽  
Jingxi Zhang ◽  
Yiwen Zhang ◽  
Deqin Zhu ◽  
Zhengquan Wan ◽  
...  
Keyword(s):  
Residual Stress ◽  
Fatigue Strength ◽  
Welded Joints ◽  
Cylinder Pressure ◽  
Stress Release

Re-evaluation of weld root fatigue strength for load-carrying fillet welded joints using the notch stress concept

2021 ◽  
Vol 144 ◽  
pp. 106076
Author(s):  
Hamidreza Rohani Raftar ◽  
Mohammad Dabiri ◽  
Antti Ahola ◽  
Timo Björk
Keyword(s):  
Fatigue Strength ◽  
Welded Joints ◽  
Notch Stress ◽  
Load Carrying ◽  
Weld Root

scholarly journals Evaluation of tensile strength and fatigue strength of commercial pure aluminum/tough pitch copper friction-welded joints by deformation heat input

2007 ◽  
Vol 57 (8) ◽  
pp. 357-361 ◽  
Author(s):  
Hiizu OCHI ◽  
Yoshiaki YAMAMOTO ◽  
Takashi YAMAZAKI ◽  
Takeshi SAWAI ◽  
Gosaku KAWAI ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Fatigue Strength ◽  
Welded Joints ◽  
Heat Input ◽  
Pure Aluminum ◽  
Commercial Pure Aluminum

scholarly journals Improving Fatigue Strength of Butt Welded Joints by Laser Peening and Its Main Factor

2011 ◽  
Vol 29 (3) ◽  
pp. 146-153 ◽  
Author(s):  
Yoshihiro SAKINO ◽  
Yuji SANO ◽  
Rie SUMIYA ◽  
You-Chul KIM
Keyword(s):  
Fatigue Strength ◽  
Welded Joints ◽  
Laser Peening ◽  
Main Factor
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