The stress intensity factor calculation for combined sliding wear and fatigue of GH4169 superalloy based on three-dimensional simulation

Jingchen, Wang; Gao, You-Shui

doi:10.1016/j.wear.2019.203012

Cited by 8 publications

(4 citation statements)

References 28 publications

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Section: Test Results and Analysismentioning

confidence: 99%

“…From the above SEM results, it can be found that fatigue gradually dominates when the amount of lubrication increases, which verifies the numerical analysis result that fatigue destroys the resistance to wear and dominates when the crack extension reaches a critical value in Wang and Gao. 21 Figure 11 reflects the interaction between the fatigue and wear of the gear. Figure 11(a) shows the interaction mechanism of the full lubrication test.…”

Section: Scanning Electron Microscope Observation and Analysis Of Too...mentioning

confidence: 99%

“…Under boundary lubrication conditions, Vrcek et al 20 investigated the resistance of gears to micropitting and wear. Wang and Gao 21 used finite element modeling and experimental verification to explore the influence of wear depth on crack growth rate and highlighted the interaction between fatigue and wear. The findings reveal that the material removal process slows crack propagation, whereas fatigue eliminates wear resistance and takes over when the nominal fracture length reaches a threshold value, and a modified model based on the traditional Paris formulation is used.…”

Section: Introductionmentioning

confidence: 99%

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Experimental research of wear-fatigue interaction of gears

Dong

Sun

Chai

et al. 2022

Advances in Mechanical Engineering

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Gear failures are commonly caused by wear and fatigue and past research on gear failures has primarily focused on individual failures. A gear testing machine was developed to explore the mechanism of gear wear-fatigue interaction, and four sets of wear-fatigue interaction tests were performed by changing the operating conditions of the gear drive by regulating the quantity of lubricant in the test gearbox. The K-S test method was used to investigate the gear life distribution under wear-fatigue interaction. The frequency domain properties of the wear-fatigue interaction were compiled and analyzed using Fast Fourier Transform (FFT) analysis. A coordinate measuring machine was implemented to obtain the exact amount of wear at each stage of the gear test. The mechanism of gear wear-fatigue interaction was analyzed by scanning electron microscope observation of tooth surfaces. The results are as follows. The life distribution under wear-fatigue interaction obeys a log-normal distribution. With the increase of the lubrication the pitting fault occurs, the fault gear rotation frequency and its harmonic frequency appear in the low frequency region, and its amplitude increases with the increase of the pitting fault. In the high-frequency region, a sideband with the faulty gear rotation frequency as the interval appears around the meshing frequency and its two times frequency, and its amplitude increases with the increase of the pitting fault. With the decrease of lubrication, the gear wear failure increases, the amplitude of the meshing frequency and its two times frequency increases in the high frequency region. In the gear transmission process, wear and fatigue exist in a competitive relationship of mutual constraints.

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Section: Test Results and Analysismentioning

confidence: 99%

Section: Scanning Electron Microscope Observation and Analysis Of Too...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental research of wear-fatigue interaction of gears

Dong

Sun

Chai

et al. 2022

Advances in Mechanical Engineering

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“…Therefore, most tribotechnical materials are used at the loads generating stresses lower than the yield stress in the contacting layers. Most calculations of wear [1][2][3][4][5][6][7][8] rely on the fulfillment of this condition. Frequently the calculation results disagree with the experimental data, since the wear models cannot correctly include into consideration many of the factors, such as contact geometry, heat sink conditions, composition of the surrounding medium, etc.…”

Section: Introductionmentioning

confidence: 99%

Deformation of the Sliding Surface of Structural Steel Under the Conditions of Sliding Current Collection

Aleutdinova

Fadin

2021

Russ Phys J

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Dry sliding of a model specimen of general-purpose steel against the hardened steel is studied under the action of electric current of a density higher than 250 A/cm 2 according to the shaft-shoe type scheme, namely in a pinon-ring test, where the specimen is presented as a pin. It is found out that this contact exhibits quite satisfactory wear resistance and electrical conduction. Using a laser confocal microscope, a morphological feature of the specimen sliding surface is revealed, which consists in the formation of two sectors. The sliding surface sector, directed from the opposite direction to the counterbody motion (front sector), is observed to deform and fracture due to the ploughing mechanism. Using an X-ray diffraction analysis, the formation of wustite, FeO, and FCC-iron is revealed in the specimen in friction.

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Three-Dimensional Numerical Analysis of Shrink-Fitted Shafts Under Rotating Bending Fretting Fatigue Condition

Jingchen

Gao

2021

Lecture Notes in Mechanical Engineering

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The stress intensity factor calculation for combined sliding wear and fatigue of GH4169 superalloy based on three-dimensional simulation

Cited by 8 publications

References 28 publications

Experimental research of wear-fatigue interaction of gears

Experimental research of wear-fatigue interaction of gears

Deformation of the Sliding Surface of Structural Steel Under the Conditions of Sliding Current Collection

Three-Dimensional Numerical Analysis of Shrink-Fitted Shafts Under Rotating Bending Fretting Fatigue Condition

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