Effect of Contact Pressure and Cyclic Stress Amplitude on Fretting Fatigue of 45-Carbon Steel

2007 ◽

Vol 353-358 ◽

pp. 134-137

Author(s):

Wei Ming Sun ◽

Shui Sheng Chen ◽

Li Qun Tu

Keyword(s):

Fatigue Life ◽

Carbon Steel ◽

Contact Pressure ◽

Main Crack ◽

Stress Amplitude ◽

Fretting Fatigue ◽

Cyclic Stress ◽

Outer Edge ◽

Middle Portion ◽

Contact Pressures

The effect of contact pressure on fretting fatigue in quenched and tempered 45-carbon steel is studied. With an increase in contact pressure, fretting fatigue life is decreased quickly at low contact pressures; however it almost unchanged at high contact pressures. With an increase in cyclic stress amplitude, fretting fatigue life decreased. In the test, concavity is formed at the fretted area accompanying wear. The main crack is initiated at the outer edge corner of the concavity at high contact pressures, and initiated at the middle portion of the fretted area at low contact pressures.

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Fretting fatigue behavior and failure characteristics of 35CrMoA steel under elliptical loading path

Industrial Lubrication and Tribology ◽

10.1108/ilt-04-2021-0121 ◽

2021 ◽

Vol 73 (6) ◽

pp. 922-928

Author(s):

Ziao Huang ◽

Xiaoshan Liu ◽

Guoqiu He ◽

Zhiqiang Zhou ◽

Bin Ge ◽

...

Keyword(s):

Fatigue Life ◽

Contact Pressure ◽

Wear Debris ◽

Stress Amplitude ◽

Fatigue Behavior ◽

Fretting Fatigue ◽

Cyclic Stress ◽

Loading Path ◽

Fatigue Wear ◽

Content Type

Purpose This study aims to understand the multiaxial fretting fatigue, wear and fracture characteristics of 35CrMoA steel under the elliptical loading path. Design/methodology/approach By keeping the contact pressure and torsional shear cyclic stress amplitude unchanged; the axial cyclic stress amplitude varied from 650 MPa to 850 MPa. The fretting fatigue test was carried out on MTS809 testing machine, and the axial cyclic strain response and fatigue life of the material were analyzed. The fretting zone and fracture surface morphology were observed by scanning electron microscope. The composition of wear debris was detected by energy dispersive X-ray spectrometer. Findings In this study, with the increase of axial stress amplitude, 35CrMoA steel will be continuously softened, and the cyclic softening degree increases. The fretting fatigue life decreases unevenly. The fretting scars in the stick region are elongated in the axial direction. The area of fracture crack propagation zone decreases. In addition, the results indicate that wear debris in the slip region is spherical and has higher oxygen content. Originality/value There were few literatures about the multiaxial fretting fatigue behavior of 35CrMoA steel, and most scholars focused on the contact pressure. This paper reveals the effect of axial cyclic stress on fretting fatigue and wear of 35CrMoA steel under the elliptical loading path.

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Analyses of Contact Pressure and Stress Amplitude Effects on Fretting Fatigue Life

Journal of Engineering Materials and Technology ◽

10.1115/1.1288211 ◽

2000 ◽

Vol 123 (1) ◽

pp. 85-93 ◽

Cited By ~ 44

Author(s):

K. Iyer ◽

S. Mall

Keyword(s):

Finite Element ◽

Fatigue Life ◽

Contact Pressure ◽

Stress Amplitude ◽

Normal Load ◽

Contact Region ◽

Local Stress ◽

Fretting Fatigue ◽

Element Analysis ◽

Stress Ratios

Elastic-plastic finite element analyses of a cylinder-on-plate configuration, studied experimentally, were performed to provide an explanation for the decrease in fretting fatigue life with increasing contact pressure. Three values of normal load, namely 1338 N, 2230 N, and 3567 N, and three stress ratios (0.1, 0.5, and 0.7) were considered. Based on a previously determined dependency between contact pressure and friction coefficient, the effect of coefficient of friction was also evaluated. The deformation remained elastic under all conditions examined. Cyclic, interfacial stresses, and slips were analyzed in detail. The amplification of remotely applied cyclic stress in the contact region is shown to provide a rationale for the effect of contact pressure and stress amplitude on life. Comparisons with previous experiments indicate that the local stress range computed from finite element analysis may be sufficient for predicting fretting fatigue life. Further, the results suggest that the slip amplitude and shear traction may be neglected for this purpose.

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Peak contact pressure, cyclic stress amplitudes, contact semi-width and slip amplitude: relative effects on fretting fatigue life

International Journal of Fatigue ◽

10.1016/s0142-1123(00)00092-x ◽

2001 ◽

Vol 23 (3) ◽

pp. 193-206 ◽

Cited By ~ 26

Author(s):

K Iyer

Keyword(s):

Fatigue Life ◽

Contact Pressure ◽

Fretting Fatigue ◽

Cyclic Stress ◽

Peak Contact Pressure

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Influence of Stress Ratio and Contact Pressure on Fretting Fatigue Behavior of Modified 9Cr-1Mo Steel

Journal of Materials Engineering and Performance ◽

10.1007/s11665-021-05581-y ◽

2021 ◽

Vol 30 (4) ◽

pp. 2822-2831

Author(s):

V. Shiva ◽

Sunil Goyal ◽

N. L. Parthasarathi ◽

C. R. Das ◽

R. Kannan ◽

...

Keyword(s):

Contact Pressure ◽

Stress Ratio ◽

Fatigue Behavior ◽

Fretting Fatigue

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Influence of Interference and Clamping on Fretting Fatigue in Single Rivet-Row Lap Joints

Journal of Tribology ◽

10.1115/1.1352746 ◽

2000 ◽

Vol 123 (4) ◽

pp. 686-698 ◽

Cited By ~ 26

Author(s):

K. Iyer ◽

C. A. Rubin ◽

G. T. Hahn

Keyword(s):

Crack Initiation ◽

Three Dimensional ◽

Fretting Fatigue ◽

Cyclic Stress ◽

Lap Joints ◽

Element Analysis ◽

Out Of Plane ◽

Dimensional Finite Element ◽

Three Dimensional Finite Element ◽

Fretting Damage

Primary fretting fatigue variables such as contact pressure, slip amplitude and bulk cyclic stresses, at and near the contact interface between the rivet shank and panel hole in a single rivet-row, 7075-T6 aluminum alloy lap joint are presented. Three-dimensional finite element analysis is applied to evaluate these and the effects of interference and clamping stresses on the values of the primary variables and other overall measures of fretting damage. Two rivet geometries, non-countersunk and countersunk, are considered. Comparison with previous evaluations of the fretting conditions in similar but two-dimensional connections indicates that out-of-plane movements and attending effects can have a significant impact on the fatigue life of riveted connections. Variations of the cyclic stress range and other proponents of crack initiation are found to peak at distinct locations along the hole-shank interface, making it possible to predict crack initiation locations and design for extended life.

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