Life of steels in fretting fatigue

Troshchenko, V. T.; Tsybanev, G. V.; Khotsyanovskii, A. O.

doi:10.1007/bf01530080

Cited by 4 publications

(16 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Earlier we have simulated contact conditions of a cylindrical specimen with concave cylindrical pads of the same diameter [26,27]. We have developed and implemented experimental and calculation techniques for flat specimens from titanium and aluminum alloys [28] and for cylindrical specimens from several mild steel grades [26] (Fig. 3).…”

Section: Experimental Techniques For Research Of Crack Initiation Andmentioning

confidence: 99%

“…In publications [30,31] involving comprehensive tribosystems used for fretting fatigue tests of cylindrical shafts, the results are treated within the tribofatigue framework (interrelated processes of wear, fretting corrosion and fatigue), which is beyond the scope of our analysis of techniques for life prediction under fretting fatigue conditions from the standpoint of fracture mechanics. Earlier we have simulated contact conditions of a cylindrical specimen with concave cylindrical pads of the same diameter [26,27]. We have developed and implemented experimental and calculation techniques for flat specimens from titanium and aluminum alloys [28] and for cylindrical specimens from several mild steel grades [26] (Fig.…”

Section: Experimental Techniques For Research Of Crack Initiation Andmentioning

confidence: 99%

“…However, a number of researchers [42][43][44][45] have experimentally substantiated a possibility of realization of this alternate mechanism. In this connection, we have proposed in [26][27][28] to use the model describing fretting fatigue crack propagation at stage II either in the maximum shear stress plane by the shear mechanism, or in the maximum tensile stress plane by the cleavage mechanism (according to the Otsuka two-parameter criterion [42]). In a case of a plane problem, the stress field in the crack tip vicinity characterized by parameters K I and K II , is described by the following equations [32] s p q q q q Fig.…”

Section: Account Of Multi-stage Fretting Fatigue Behavior and Use Of mentioning

confidence: 99%

“…In [26], we have used formulas (1) and various contact load distribution schemes in the calculation program for SIF assessment in fretting fatigue crack tip in structural steels.…”

Section: The Basic Calculation Formulas and Analogiesmentioning

confidence: 99%

“…In works [26][27][28], for description of multi-stage FCP process under fretting fatigue conditions the Otsuka two-parameter criterion [42] was used, which will be discussed in detail together with another perspective empirical criterion -the Richard criterion [38] from the point of view of their applicability to alloys Al 7075-T6, AMg6N, and VT9. The Richard Criterion.…”

Section: Account Of Multi-stage Fretting Fatigue Behavior and Use Of mentioning

confidence: 99%

See 4 more Smart Citations

Life prediction of titanium and aluminum alloys under fretting fatigue conditions using various crack propagation criteria. Part 1. Experimental and calculation techniques

Khotsyanovskii

2010

Strength Mater

Self Cite

View full text Add to dashboard Cite

539.4Using the analysis of state-of-the-art techniques of fretting fatigue studies and results of description of multi-stage fatigue crack propagation in fretting zone within fracture mechanics framework, we have refined the calculation-and-experimental technique earlier proposed by the author. This technique allows one to predict current values of the angle and rate of inclined crack propagation in the subsurface layers of material under fretting conditions using calculated stress intensity factors K I and K II for contact and bulk loads, as well as experimental crack resistance diagrams by K I and/or K II types. We have performed comparative analysis of various techniques for construction of crack resistance diagrams by K I and K II types and obtained the results for AMg6N and Al 7075-T6 aluminum alloys and VT9 titanium alloy. It is shown that the initial stage of crack propagation in the above alloys can occur in the maximal shear stress plane by shear mechanism or in the maximal tensile stress plane by cleavage mechanism according to the Otsuka two-parameter criterion or to the Richard empirical criterion.

show abstract

Section: Experimental Techniques For Research Of Crack Initiation Andmentioning

confidence: 99%

Section: Experimental Techniques For Research Of Crack Initiation Andmentioning

confidence: 99%

Section: Account Of Multi-stage Fretting Fatigue Behavior and Use Of mentioning

confidence: 99%

“…In [26], we have used formulas (1) and various contact load distribution schemes in the calculation program for SIF assessment in fretting fatigue crack tip in structural steels.…”

Section: The Basic Calculation Formulas and Analogiesmentioning

confidence: 99%

Section: Account Of Multi-stage Fretting Fatigue Behavior and Use Of mentioning

confidence: 99%

See 3 more Smart Citations

Life prediction of titanium and aluminum alloys under fretting fatigue conditions using various crack propagation criteria. Part 1. Experimental and calculation techniques

Khotsyanovskii

2010

Strength Mater

Self Cite

View full text Add to dashboard Cite

show abstract

Mechanics of Components with Treated or Coated Surfaces

Menčík

1996

Solid Mechanics and Its Applications

View full text Add to dashboard Cite

show abstract

Life prediction of titanium and aluminum alloys under fretting fatigue conditions using various crack propagation criteria. Part 2. Application of the technique to cylindrical specimens with semi-elliptical crack and account of the residual stresses

Khotsyanovskii

2011

Strength Mater

Self Cite

View full text Add to dashboard Cite

In order to simulate the operating fretting-fatigue conditions in cylindrical structural components, we have performed experimental studies on fretting fatigue of cylindrical specimens with clamped concave cylindrical pads of bridge type. Using the known solutions for stress intensity factors in the semi-elliptical cracks growing in cylindrical specimens, we predict the kinetics of propagation of fretting-fatigue cracks according to the two-parameter model described in Part 1. A close correlation of calculated and experimental fretting-fatigue life values is observed for AMg6N alloy for varied experimental fretting conditions (contact load, slip amplitude and friction coefficient). For alloy VT9 we have provided approbation of the technique, which takes into account distribution of the residual stresses in the material subsurface during calculation of stress-strain state and life under fretting-fatigue conditions.Keywords: fretting fatigue, crack propagation stages, effective stress intensity factor, fatigue fracture diagram, life prediction.Fretting Fatigue Studies of Cylindrical Specimens. The approach proposed earlier [1] can be applied to fretting fatigue in structural components with round cross section. For this purpose, we re-address the analogue model [2], which implies similarity of the stress-strain states in the tips of cracks growing at the edge a rigid punch/half-plane contact (Fig. 1à) and from a V-notch in a half-plane (Fig. 1b). In view of results obtained in [1], this similarity can be used not only for calculation purposes, but for interpretation of the experimental data as well: if crack propagation by shear mechanism (Mode II) is observed in particular materials (e.g., AMg6N and Al7075-T6 aluminum alloys) during implementation of the contact scheme (Fig. 1à), the same pattern can be expected to occur in the loading scheme (Fig. 1b). On the other hand, the latter scheme is the Otsuka modified scheme [3] for Mode II crack resistance tests, which envisages application of compressive bulk loads parallel to the initial crack. By growing the initial crack in one of the two V-notches by pulse bending one can simulate the respective fretting-fatigue conditions.Since model [2] proposed for a half-plane is widely applied to plane specimens with high width/thickness ratio under conditions of small crack length and high stress gradients, it is reasonable to assume that the axisymmetric problem of a cylindrical body with a circular V-notch would similarly have the same asymptotic solutions, as the contact problem of the uniform equilateral compression of a cylindrical body of diameter D by a convex cylindrical ring of the same inner diameter. By applying a conditional axis of a symmetry X to cross sections shown in Fig. 1, one can compare the bodies of revolution corresponding to the respective cross sections ( Fig. 1à and 1b). 420039-2316/11/4301-0042

show abstract

Life of steels in fretting fatigue

Cited by 4 publications

References 3 publications

Life prediction of titanium and aluminum alloys under fretting fatigue conditions using various crack propagation criteria. Part 1. Experimental and calculation techniques

Life prediction of titanium and aluminum alloys under fretting fatigue conditions using various crack propagation criteria. Part 1. Experimental and calculation techniques

Mechanics of Components with Treated or Coated Surfaces

Life prediction of titanium and aluminum alloys under fretting fatigue conditions using various crack propagation criteria. Part 2. Application of the technique to cylindrical specimens with semi-elliptical crack and account of the residual stresses

Contact Info

Product

Resources

About