Numerical and experimental investigations on fretting fatigue properties of GH4169 superalloy at the elevated temperature

Jingchen, Wang; Gao, You-Shui

doi:10.1016/j.ijfatigue.2021.106274

Cited by 16 publications

(4 citation statements)

References 56 publications

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“…Previous investigations 41,42 pointed out that the fretting fatigue damage was greatly affected by the high-stress gradient. Employing the hot-spot approach may result in overly conservative results because of the severe stress gradient, which can be mitigated by the TCD.…”

Section: Theory Of Critical Distancementioning

confidence: 99%

Experimental and numerical study on the multi‐site fretting fatigue crack initiation of press‐fitted axles

Zou,

Zeng,

Tian

et al. 2023

Fatigue Fract Eng Mat Struct

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In this study, fretting fatigue tests were conducted to gather information on both fretting fatigue and fretting wear. Subsequently, an evaluation methodology that combined the Modified Wöhler Curve Method (MWCM) with the theory of critical distance (TCD) was established to investigate multi‐site fretting crack initiation. The results showed that the fretting fatigue damage could be reasonably evaluated using the MWCM equivalent stress σMWCM. σMWCM is greatly influenced by both bulk stress and fretting wear‐induced stress concentration. The stress field close to the wear boundary increased due to the continuous fretting wear, leading to an increase in σMWCM; meanwhile, the bulk stress near the wear boundary decreased as the crack propagated, resulting in a decrease in σMWCM. The combined effect of the fretting crack propagation and wear caused σMWCM, which was located within an annular strip of the axle, to exceed the critical value, causing the multi‐site fretting crack initiation.

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Section: Theory Of Critical Distancementioning

confidence: 99%

Experimental and numerical study on the multi‐site fretting fatigue crack initiation of press‐fitted axles

Zou,

Zeng,

Tian

et al. 2023

Fatigue Fract Eng Mat Struct

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“…Fretting is a small (0.1-300 μm) repeated periodic relative sliding or rolling motion or motion state between the contact surfaces of two components under the action of cyclic loading. 1,2 The fretting fatigue damage caused by fretting, commonly known as "cancer" in industry, extensively exists in aerospace, 3 rail transit, 4 oil pipelines, 5 biomedicine, 6 wind power generation, 7 and other fields, seriously restricting the actual service life of key components. 8,9 As the key component of the aero-engine, the compressor blades are served in the environment of "three high and one long" (high temperature, high pressure, high speed, and long-term reciprocating cycle).…”

Section: Introductionmentioning

confidence: 99%

Experimental study and fretting fatigue life prediction in dovetail assembly considering stress–temperature nonlinear coupling effect

Sun

Gao

Huo

2023

Fatigue Fract Eng Mat Struct

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As a paramount failure form of dovetail assembly, high‐temperature fretting fatigue seriously restricts the actual service life. Aiming at the problem of fretting fatigue life prediction of dovetail assembly of the aero‐engine compressor under the coexistence of stress and high temperature, based on D‐M contact theory and continuum damage mechanics theory, a fretting fatigue life prediction model considering stress–temperature nonlinear coupling effect is proposed in this paper by, respectively, introducing the fretting fatigue stress σfretting and the high‐temperature influence factor λ. Meanwhile, the judgment criterion of fretting fatigue crack initiation and failure is raised based on the strain–displacement method, and the fretting fatigue test is designed and carried out for experimental verification. The results show that the proposed fretting fatigue life prediction model has high life prediction ability, whose life prediction results are within ±1.7 times the error band, which can provide a theoretical reference for the structural design optimization and damage tolerance design of dovetail assembly.

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“…Under the external fatigue cyclic loads, fretting fatigue will happen because of micrometerscale relative movements at the interface between contact bodies [1]. Fretting fatigue is widely found in a variety of engineering components, such as in riveted structures or bolted structures, bioimplant components, railway axles, aerospace, nuclear energy, and so on [2][3][4]. It results in the earlier failure and lower fatigue strength of the structure than plain fatigue does [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Failure Mechanism Research on Bending Fretting Fatigue of 6061-T6 Aluminum Alloy by Experiment and Finite Element Method

Ding

Liu

2023

Materials

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The fatigue failure mechanism of bending fretting for cyclic softening material 6061-T6 aluminum alloy was researched by experiment and finite element method. The influence of cyclic load on bending fretting fatigue was researched and the damage characteristics under different cycles was discussed experimentally though SEM images. In the simulation, a normal load transformation method was employed to obtain a simplified two-dimensional model used for simulating the bending fretting fatigue from a three-dimensional model. An advanced constitutive equation with the Abdel–Ohno rule and isotropic hardening evolution was transplanted into ABAQUS by UMAT subroutine to consider the ratchetting behavior and cyclic softening characteristics. The peak stain distributions under various cyclic loads were discussed. Additionally, the bending fretting fatigue lives and crack initiation locations referring to a critical volume method were estimated using the Smith–Watson–Topper critical plane approach and reasonable results were obtained.

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Numerical and experimental investigations on fretting fatigue properties of GH4169 superalloy at the elevated temperature

Cited by 16 publications

References 56 publications

Experimental and numerical study on the multi‐site fretting fatigue crack initiation of press‐fitted axles

Experimental and numerical study on the multi‐site fretting fatigue crack initiation of press‐fitted axles

Experimental study and fretting fatigue life prediction in dovetail assembly considering stress–temperature nonlinear coupling effect

Failure Mechanism Research on Bending Fretting Fatigue of 6061-T6 Aluminum Alloy by Experiment and Finite Element Method

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