Fatigue Life Analysis of Turbine Disks Based on Load Spectra of Aero-engines

Li, Yanfeng; Lv, Zhiqiang; Cai, Wei; Zhu, Shun‐Peng; Huang, Hong‐Zhong

doi:10.1515/tjj-2015-0004

Cited by 11 publications

(3 citation statements)

References 7 publications

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“…[26][27][28][29][30][31][32][33][34][35][36] In practical engineering applications, since the calculation method of Miner's rule is simple, and the estimated fatigue life error can meet manufacturing demand, it is often used to predict fatigue life. [37][38][39][40][41] With the improvement of the reliability requirements of the mechanical structure, the life prediction error by the Miner's rule has attracted widespread attention. Recently, many researchers have focused on the CCF life prediction model.…”

Section: Introductionmentioning

confidence: 99%

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%

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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“…The damage mechanics theory is a common method to predict fatigue life. [18][19][20] According to the continuous damage mechanics framework, Chen et al 21 introduced the concept of material configuration force as a variable to explain fatigue damage accumulation. At the same time, a damage rate function is proposed on the basis of the configuration force and damage state of the material to predict fatigue life of the material.…”

Section: Introductionmentioning

confidence: 99%

Life prediction model based on toughness exhaustion under combined high and low cycle fatigue loading

Hou

Wang

Chen³

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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It is very important to establish a life prediction model that evaluates the combined high and low cycle fatigue (CCF) damage of materials. Based on the toughness exhaustion, this paper develops a CCF life prediction model considering loading interaction effect. The loading interaction factor is proposed to reflect the interaction effect between high cycle fatigue and low cycle fatigue. The proposed model does not require any additional material parameters and is convenient for application. The experimental data of four materials including GH4033 Ni-basis alloy, TC11 titanium alloy, LY12-CZ aluminum alloy, and 45 steel are applied to verify the proposed model. Comparing the prediction results of the proposed model with the Miner’s rule and the T-K model, the results show that the predicted results of the proposed model are more satisfactory.

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“…Although great advancements have been made in the micro-physical mechanisms of fatigue failure, it is not surprising that such analytical theories are relatively complicated and difficult to implement in engineering. In contrast, phenomenological theories [9][10][11][12][13][14] are still the main approaches for fatigue analysis, where simple fatigue formulas 2 of 17 that can be identified directly from experiments are preferred. In cases of uniform fatigue loading, some phenomenological formulas are representative and constitute the generic fatigue rules available for many different materials, such as Basquin's law (stress-life), Manson-Coffin's law (strain-life), Goodman's law (mean stress correction), and Paris' law (crack propagation rate).…”

Section: Introductionmentioning

confidence: 99%

A New Cumulative Fatigue Damage Rule Based on Dynamic Residual S-N Curve and Material Memory Concept

Peng

Huang

Zhou

et al. 2018

Metals

Self Cite

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This paper introduces a new phenomenological cumulative damage rule to predict damage and fatigue life under variable amplitude loading. The rule combines a residual S-N curve approach and a material memory concept to describe the damage accumulation behavior. The residual S-N curve slope is regarded as a variable with respect to the loading history. The change in slope is then used as a damage measure and quantified by a material memory degeneration parameter. This model improves the traditional linear damage rule by taking the load-level dependence and loading sequence effect into account, which still preserves its superiority. A series of non-uniform fatigue loading protocols are used to demonstrate the effectiveness of the proposed model. The prediction results using the proposed model are more accurate than those using three popular damage models. Moreover, several common characteristics and fundamental properties of the chosen fatigue models are extracted and discussed.

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Fatigue Life Analysis of Turbine Disks Based on Load Spectra of Aero-engines

Cited by 11 publications

References 7 publications

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

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

Life prediction model based on toughness exhaustion under combined high and low cycle fatigue loading

A New Cumulative Fatigue Damage Rule Based on Dynamic Residual S-N Curve and Material Memory Concept

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