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

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

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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