Results 171 to 180 of about 3,669 (221)
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Fatigue & Fracture of Engineering Materials & Structures, 1988
Abstract— The magnitudes and directions of the frictional forces must be considered in any fracture mechanics analysis of crack growth under fretting fatigue conditions. A simple nonlinear friction model has been developed which relates the waveforms of the frictional forces to those of the applied forces when fretting occurs.
D. P. Rooke, P. R. Edwards
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Abstract— The magnitudes and directions of the frictional forces must be considered in any fracture mechanics analysis of crack growth under fretting fatigue conditions. A simple nonlinear friction model has been developed which relates the waveforms of the frictional forces to those of the applied forces when fretting occurs.
D. P. Rooke, P. R. Edwards
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Fretting Corrosion and Fretting Fatigue
1982Two metals and alloys, in intimate contact, but with a small amount of relative motion between them, will often show excessive weight losses. If the relative motion between the parts is caused by applied stresses the parts may also suffer from premature fatigue failures.
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1994
So far, we have presented several of the elements of calculation necessary to analyse a range of idealised fretting contacts. They merely provide tools for determining the state of stress, strain and displacement, but do not, in themselves, permit production of initiation or crack propagation criteria, without extensive experimental data. The object of
D. A. Hills, D. Nowell
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So far, we have presented several of the elements of calculation necessary to analyse a range of idealised fretting contacts. They merely provide tools for determining the state of stress, strain and displacement, but do not, in themselves, permit production of initiation or crack propagation criteria, without extensive experimental data. The object of
D. A. Hills, D. Nowell
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Fretting Wear Mechanisms and Their Effects on Fretting Fatigue
Journal of Tribology, 1988Fretting wear and fretting fatigue are governed by the rate of formation of materials (third-bodies) between the initial contact surfaces. Furthermore, the third-bodies must be maintained within the contact. The issue of the race between third-body formation and subsurface damage conditions the effect of fretting on fatigue.
Y. Berthier +3 more
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ASME 2011 Rail Transportation Division Fall Technical Conference, 2011
The effect of surface damage by fretting corrosion pits under the backing ring or wheel seat will provide stress risers that will serve as crack initiation sites for fatigue crack initiation. Approximately one-half of North American axle failures are initiated by fretting. Both fretting under the backing ring and fretting in the wheel seat are reviewed.
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The effect of surface damage by fretting corrosion pits under the backing ring or wheel seat will provide stress risers that will serve as crack initiation sites for fatigue crack initiation. Approximately one-half of North American axle failures are initiated by fretting. Both fretting under the backing ring and fretting in the wheel seat are reviewed.
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2003
Abstract : The multitask objectives of the plan discussed in this proposal are to research the role and effects of fretting on structural life of components; develop and demonstrate the feasibility of integrating candidate fretting fatigue predictive analytic model(s) into structural integrity methods; integrate and implement the techniques for ...
N. Young +4 more
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Abstract : The multitask objectives of the plan discussed in this proposal are to research the role and effects of fretting on structural life of components; develop and demonstrate the feasibility of integrating candidate fretting fatigue predictive analytic model(s) into structural integrity methods; integrate and implement the techniques for ...
N. Young +4 more
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On Crack Initiation Mechanisms in Fretting Fatigue
Journal of Applied Mechanics, 2000By using the crack analogue model of rigid flat-ended contact, crack initiation in fretting fatigue is analyzed. The coefficient of friction at the edge of contact, which characterizes the asymptotic stress field, is considered as the primary controlling parameter in the process.
Yang, B., Mall, S.
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2019
This chapter deals with the investigation of contact interaction of two bodies under the conditions of fretting fatigue. We study the fracture processes in the material (and construct the paths of crack propagation) in the zone of cyclic contact of two bodies under the conditions of fretting fatigue, in particular, depending on the friction coefficient
Oleksandra Datsyshyn, Volodymyr Panasyuk
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This chapter deals with the investigation of contact interaction of two bodies under the conditions of fretting fatigue. We study the fracture processes in the material (and construct the paths of crack propagation) in the zone of cyclic contact of two bodies under the conditions of fretting fatigue, in particular, depending on the friction coefficient
Oleksandra Datsyshyn, Volodymyr Panasyuk
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Mechanics of fretting fatigue crack formation
Wear, 1995Abstract Fretting is a contact damage process arising from surface microslip associated with small-scale oscillatory motion of damped structural members. The fretting damage process is a synergistic competition among wear, corrosive and fatigue phenomena driven by both the microslip at the contact surface and cyclic fretting contact ...
Matthew P. Szolwinski, Thomas N. Farris
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Mechanics of Fretting and Fretting Fatigue
2021David A. Hills, Hendrik N. Andresen
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