Features of the effect of stress concentration on the fatigue resistance of graphitic steel with impact loading

1989 ◽  
Vol 21 (10) ◽  
pp. 1311-1316
Author(s):  
A. E. Chichkova ◽  
V. A. Skudnov
Keyword(s):  
Stress Concentration ◽  
Fatigue Resistance ◽  
Impact Loading ◽  
Graphitic Steel

GRAPH-AL

Alloy Digest ◽  
1958 ◽  
Vol 7 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Impact Loading ◽  
Roller Bearing ◽  
Heat Treating ◽  
Graphitic Steel

Abstract GRAPH-AL is a water or brine hardening graphitic steel used in applications which require shallow hardening properties and resistance to impact loading. This datasheet provides information on composition and hardness as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-68. Producer or source: Timken Roller Bearing Company.

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.

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