Fatigue failure mechanism of coal mining machine cutting gearbox housing

Zhang, Rui; Zhang, Yimin; Zhu, Lisha; Huang, Jing

doi:10.1007/s40430-020-02368-5

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…Fatigue is the main cause of some mechanical failures, such as vehicles and turbine blades of aero‐engines 1–6 . Before fatigue failure occurs, the surfaces of turbine blades usually do not exhibit obvious features.…”

Section: Introductionmentioning

confidence: 99%

“…Fatigue is the main cause of some mechanical failures, such as vehicles and turbine blades of aero-engines. [1][2][3][4][5][6] Before fatigue failure occurs, the surfaces of turbine blades usually do not exhibit obvious features. Therefore, the influence of fatigue failure on turbine blades should be considered when designing mechanical structures.…”

Section: Introductionmentioning

confidence: 99%

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On the consideration of loading interaction in combined high and low cycle fatigue life prediction

Liu

Wang

Shen

et al. 2023

Fatigue Fract Eng Mat Struct

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Based on the analysis of the test data and Miner's rule, a combined high and low cycle fatigue (CCF) life prediction model considering the loading interaction is established by introducing coupled damage. The coupled damage is determined by multiplying the high cycle fatigue damage and the low cycle fatigue damage by a coupled damage coefficient K. According to the analysis of the test data, the coupled damage coefficient K is positively correlated with the high cycle stress ratio R. In addition, an interaction factor, which reflects the loading interaction effect, is introduced to correct the coefficient K. The CCF experimental data of four materials are employed for model verification and comparison among the proposed model, Miner's rule, and Trufyakov-Kovalchuk model (T-K model). The proposed model exhibits a relatively higher prediction accuracy and is more suitable for predicting the fatigue life of CCF. K E Y W O R D S combined high and low cycle fatigue, coupled damage, fatigue life, loading interaction Highlights 1. A combined fatigue life prediction model is proposed considering loading interaction.2. Coupled damage coefficient is determined through analysis of the test data. 3. The proposed model exhibits a relatively higher prediction accuracy.

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Section: Introductionmentioning

confidence: 99%