Effect of stress concentration on the fatigue resistance of creep-resisting nickel alloys in asymmetric multicycle loading. Report 1

1984 ◽  
Vol 16 (3) ◽  
pp. 372-378
Author(s):  
B. N. Sinaiskii
Keyword(s):  
Stress Concentration ◽  
Fatigue Resistance ◽  
Nickel Alloys ◽  
Multicycle Loading

Effect of stress concentration on fatigue strength of heat-resistant nickel alloys

1984 ◽  
Vol 16 (5) ◽  
pp. 617-621
Author(s):  
M. S. Belyaev ◽  
N. D. Zhukov
Keyword(s):  
Fatigue Strength ◽  
Stress Concentration ◽  
Nickel Alloys ◽  
Heat Resistant

Effect of loading cycle asymmetry, stress concentration, and fretting corrosion on the fatigue resistance of alloy D16T

1990 ◽  
Vol 22 (5) ◽  
pp. 678-684
Author(s):  
V. I. Dragan ◽  
S. M. Semenyuk ◽  
E. I. Mitchenko ◽  
V. O. Merkulov
Keyword(s):  
Stress Concentration ◽  
Fatigue Resistance ◽  
Fretting Corrosion ◽  
Cycle Asymmetry ◽  
Alloy D16t ◽  
Loading Cycle

Variation of Fatigue Notch Factor With Lifetime, Stress Ratio and Temperature

1986 ◽  
Vol 108 (2) ◽  
pp. 179-185 ◽  
Author(s):  
Avraham Berkovits
Keyword(s):  
Stress Concentration ◽  
Nickel Alloys ◽  
Stress Ratio ◽  
Fatigue Lifetime ◽  
Failure Data ◽  
Wide Range ◽  
Fatigue Notch Factor ◽  
Factor Data ◽  
Theoretical Stress ◽  
Theoretical Stress Concentration Factor

An understanding of the influence of various loading parameters on the fatigue notch factor Kf is important to the designer, who often relies exclusively on the limited fatigue data available in handbooks. The significance and limitations of Kf values so obtained are discussed in the light of geometry, fatigue lifetime, stress ratio, and temperature. Ultimately fatigue notch factor data in the literature are very limited, and often there is no recourse but to make use of the theoretical stress concentration factor Kt. The results of this procedure are usually very conservative. Handbook fatigue failure data were reexamined in order to determine the variation of Kf for a representative range of materials, including aluminum, steel, titanium and nickel alloys. Results are presented in the form of Kf over a wide range of notch and loading conditions. The results are interpreted and generalized in terms of stress concentration, and material mechanical and microstructural response.

Influence of alloying, stress concentration, and surface hardening on the fatigue resistance of rotor steel

1986 ◽  
Vol 28 (9) ◽  
pp. 637-642 ◽  
Author(s):  
N. E. Naumchenkov ◽  
O. V. Filimonova ◽  
I. A. Borisov
Keyword(s):  
Stress Concentration ◽  
Fatigue Resistance ◽  
Surface Hardening ◽  
Rotor Steel

Improvement of performance of bolt–nut connections, Part II: Experimental investigation

2014 ◽  
Vol 228 (17) ◽  
pp. 3078-3089 ◽  
Author(s):  
GH Majzoobi ◽  
M Agh-Mohammad Dabbagh ◽  
P Asgari ◽  
MK Pipelzadeh ◽  
SJ Hardy
Keyword(s):  
Experimental Investigation ◽  
Fatigue Life ◽  
Stress Concentration ◽  
Fatigue Resistance ◽  
Numerical Results ◽  
Experimental Results ◽  
Axial Hole ◽  
Experiment And Simulation

In this work, bolt and nut geometries are modified for the improvement of fatigue life of the bolt–nut connections. The modifications are aimed at reducing the stress concentration at the thread roots by factors such as reducing the shank diameter, making axial hole in bolt, stepping the nut and their combinations. The effect of modifications is studied by experiment and simulation. The experimental results show that all types of modifications considered result in an improvement in the fatigue resistance of bolt–nut connections but to different extents. However, the effects of the two latter types are more significant. The most improvement is achieved for the case when all types of modifications are combined together. In this case, fatigue life can be increased by almost 100%. Numerical results also show that all types of modifications lead to the reduction of stress concentration.

Influence of cross sectional dimensions of surface strengthened specimens of D16T alloy on fatigue resistance under stress concentration conditions

1990 ◽  
Vol 22 (4) ◽  
pp. 563-568
Author(s):  
B. F. Pavlov ◽  
V. I. Lapin ◽  
Yu. I. Kol'tsun ◽  
S. A. Bordakov ◽  
A. V. Pisarev
Keyword(s):  
Stress Concentration ◽  
Fatigue Resistance ◽  
Cross Sectional ◽  
D16t Alloy
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