Fretting fatigue of a shrink-fit pin subjected to rotating bending: Experiments and simulations

Alfredsson, Bo

doi:10.1016/j.ijfatigue.2009.04.019

Cited by 49 publications

(17 citation statements)

References 30 publications

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“…This pressure corresponds to a maximum von Mises stress in the hub of 7/3 · p f . The singularity size for the present design is estimated using the COMSOL program (COMSOL AB (1998-2009). The connection is modeled assuming axis symmetry as seen in Figure 1.…”

Section: Stress Singularity Of Standard Designmentioning

confidence: 99%

“…The failure is a gradual surface deterioration resulting in loss of contact pressure. Experimental verification of fretting fatigue can be found in Alfredsson (2009) and the residual stress in an interference fit is discussed in Gamer and Lance (1983) In a traditional design with cylindrical assembly surfaces for shaft and hub, the result is a large stress concentration at the axial ends of contact. The shaft is in the working condition typically loaded in both bending and torsion.…”

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confidence: 99%

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On optimization of interference fit assembly

Pedersen

2016

Struct Multidisc Optim

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Assembly of shaft and hub by an interference fit is a classical connection with known advantages and disadvantages. The advantage being the level of possible torque transfer while the disadvantage is a possible fretting fatigue failure at the points of stress concentration. To improve the assembly the present paper discusses different optimized designs that improve the contact pressure distribution. The pressure distribution in the contact is the source responsible for the fatigue failure. The distribution can be improved by design modification done directly on the contacting surfaces which however requires a very high production precision. Alternatively it is shown, how hub side shape optimization can improve the pressure distribution significantly. The latter design change has no influence on the remaining shaft-hub design i.e. the attachment of other parts. The analysis is performed either by a traditional contact analysis, or by a super element contact analysis where no iterations are needed for the contact evaluation.

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Section: Stress Singularity Of Standard Designmentioning

confidence: 99%

mentioning

confidence: 99%

On optimization of interference fit assembly

Pedersen

2016

Struct Multidisc Optim

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“…Reproduction of rotatory bending fretting fatigue damage of railway axle in a laboratory is the best way to understand its mechanisms. Research on rotatory bending fretting fatigue behaviour of shrink‐fitted pin has been done by Alfredsson . The diameters of the shaft and the hub used in Alfredsson's experiment were 14 and 76 mm, respectively, with contact length of 28 mm.…”

Section: Introductionmentioning

confidence: 99%

An investigation on rotatory bending fretting fatigue damage of railway axles

Song

Shen

Lin

et al. 2013

Fatigue Fract Eng Mat Struct

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Fretting damage failure analysis of a Chinese carbon railway axle RD2 was carried out. The wheel hub was in situ cut to expose the damaged surface of the wheel seat to avoid additional damage. A small‐scale axle test rig was developed, and simulation tests were performed at different rotator speeds of 1800 and 2100 rpm. The wear mechanism of fretting damage areas was a combination of abrasive wear, oxidative wear and delamination. The fracture surfaces exhibited characterization of multisource and step‐profile. The fretting fatigue crack initiated at the subsurface and propagated along an inclined angle at the first stage. The fretting damage at the higher speed was more severe compared with the lower speed, which lead to a relatively shorter fatigue life. The damage morphologies of the axle in the simulation tests were in good agreement with that observed in the failure analysis on real axle.

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“…Examples of fretting fatigue include the dovetail interface of turbomachinery [1][2][3][4] and the shrink-fit (tubular or cylindrical) connection [5][6][7][8][9][10][11]. Fretting testing is essential in designing admissible loads and also to validate different modelling approaches.…”

Section: Introductionmentioning

confidence: 99%

“…Experimental fretting tests can be classified into: (1) full or small scale replication of the actual fretting configuration, as experienced by the in-service component, and (2) idealised test layout where the contact is accurately controlled [12,13]. Examples of component testing have been presented by Golden et al [4,14] regarding the dovetail interface, by Bertini et al [9] and Alfredsson [10] regarding shrink-fit connection, and Azevedo et al [15] regarding cable clamping, as well as others for different applications. Controlled contact fretting tests are well summarised in Hills and Nowell [12], and the usual layout is the ''bridge" type with a two sided contact pad.…”

Section: Introductionmentioning

confidence: 99%