Multiaxial fatigue under variable amplitude loadings: review and solutions

Deng, Qing-Yun; Zhu, Shibai; He, Jin-Chao; Li, Xue-Kang; Carpinteri, Andrea

doi:10.1108/ijsi-03-2022-0025

Cited by 55 publications

(19 citation statements)

References 218 publications

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“…In the stress analysis of thin-walled cylindrical pressure vessels, many people think that the stresses received by cracks in different directions are hoop stress and axial stress, [20][21][22][23][24] the calculation method is adopting the analysis method of thin-walled cylinders. Some people would also think that the crack stress analysis of large liquid storage tanks is still obtained by the analysis method of thin-walled cylinders.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

Yang

Liu

Lai

et al. 2022

Advances in Mechanical Engineering

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In the field of corrosion fatigue crack research, how to couple corrosion and fatigue under various conditions is a problem worthy of discussion. According to the electrochemical corrosion principles and the superposition principles, studies have been made on the interaction between corrosion and fatigue, and the relationship model between the corrosion fatigue crack size and the corrosion fatigue remaining life in the Corrosion of Hydrogen evolution (COHE) fatigue long crack growth stage is established. The feasibility of the model is verified by using the experimental data. According to the specific structure of the dislocation butt weld of large storage tank, the stress at the crack is calculated. Based on the above model and the experimental data, the corrosion fatigue residual life of large storage tank is predicted. The feasibility of the model is verified, which provides a new method for corrosion fatigue life prediction of large storage tanks.

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Section: Introductionmentioning

confidence: 99%

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

Yang

Liu

Lai

et al. 2022

Advances in Mechanical Engineering

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“…Fatemi and Socie (1988) performed the prediction of the multiaxial fatigue life by combining the Coffin–Manson–Basquin equation with the maximum shear strain amplitude on the critical plane and achieved satisfactory results. Therefore, the critical plane method is considered a more effective method to solve the multiaxial fatigue life prediction problem (Brown and Miller, 1973; Varvani-Farahani, 2000; Deng et al. , 2022; Zhu et al.…”

Section: Introductionmentioning

confidence: 99%

“…Fatemi and Socie (1988) performed the prediction of the multiaxial fatigue life by combining the Coffin-Manson-Basquin equation with the maximum shear strain amplitude on the critical plane and achieved satisfactory results. Therefore, the critical plane method is considered a more effective method to solve the multiaxial fatigue life prediction problem (Brown and Miller, 1973;Varvani-Farahani, 2000;Deng et al, 2022;Zhu et al, 2018;Arora et al, 2021). Brown and Miller (1979) and Fatemi and Socie (1988) used the plane of maximum shear strain amplitude as the critical plane and the combination of maximum shear strain amplitude with strain or stress on the critical plane as the control parameter for multiaxial fatigue damage.…”

Section: Introductionmentioning

confidence: 99%

Critical plane-based fatigue life model under multiaxial random loading

Wang

Liu

Hua

et al. 2022

IJSI

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PurposeEngineering components/structures are usually subjected to complex and variable loads, which result in random multiaxial stress/strain states. However, fatigue analysis methods under constant loads cannot be directly applied to fatigue life prediction analysis under random loads. Therefore, the purpose of this study is how to effectively evaluate fatigue life under multiaxial random loading.Design/methodology/approachFirst, the average phase difference is characterized as the ratio of the number of shear strain cycles to the number of normal strain cycles, and the new non-proportional additional hardening factor is proposed. Then, the determined random typical load spectrum is processed into a simple variable amplitude load spectrum, and the damage in each plane is calculated according to the multiaxial fatigue life prediction model and Miner theory. Meanwhile, the cumulative damage can be calculated separately by projection method. Finally, the maximum projected cumulative damage plane is defined as the critical plane of multiaxial random fatigue.FindingsThe fatigue life prediction capability of the method is verified based on test data of TC4 titanium alloy under random multiaxial loading. Most of the predicting results are within double scatter bands.Originality/valueThe objective of this study is to provide a reference for the determination of critical plane and non-proportional additional hardening factor under multiaxial random loading, and to promote the development of multiaxial fatigue from experimental studies to practical engineering applications.

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“…Liu et al (2015) established a model for multiaxial high-cycle fatigue life evaluation of notched structural components, which considers the impact of the stress field on fatigue life by utilizing the Theory of Critical Distances (TCD) and Finite Element Method (FEM). Deng et al (2022) presented some basic concepts and recent results in multiaxial random/variable amplitude fatigue analysis. Liao et al (2020) Current studies show that mean stress effect and additional strengthening effect have a significant impact on multiaxial fatigue life (Fatemi and Kurath, 1988;Sines and Ohgi, 1981;Davoli et al, 2003;Kebir et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…(2015) established a model for multiaxial high-cycle fatigue life evaluation of notched structural components, which considers the impact of the stress field on fatigue life by utilizing the Theory of Critical Distances (TCD) and Finite Element Method (FEM). Deng et al. (2022) presented some basic concepts and recent results in multiaxial random/variable amplitude fatigue analysis.…”

Section: Introductionmentioning

confidence: 99%

Low-cycle multiaxial random fatigue life prediction model based on equivalent stress transformation

Liu²,

Hua³

et al. 2022

IJSI

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PurposeUnder multiaxial random loading, the material stress–strain response is not periodic, which makes it difficult to determine the direction of the critical plane on the material. Meanwhile, existing methods of constant loading cannot be directly applied to multiaxial random loading; this problem can be solved when an equivalent stress transformation method is used.Design/methodology/approachFirst, the Liu-Mahadevan critical plane is introduced into multiaxial random fatigue, which is enabled to determine the material's critical plane position under random loading. Then, an equivalent stress transformation method is proposed which can convert random load to constant load. Meanwhile, the ratio of mean stress to yield strength is defined as the new mean stress influence factor, and a new non-proportional additional strengthening factor is proposed by considering the effect of phase differences.FindingsThe proposed model is validated using multiaxial random fatigue test data of TC4 titanium alloy specimens and the results of the proposed model are compared with that based on Miner's rule and BSW model, showing that the proposed method is more accurate.Originality/valueIn this work, a new multiaxial random fatigue life prediction model is proposed based on equivalent stress transformation method, which considers the mean stress effect and the additional strengthening effect. Results show that the predicted fatigue lives given by the proposed model are in well accordance with the tested data.

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Multiaxial fatigue under variable amplitude loadings: review and solutions

Cited by 55 publications

References 218 publications

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

Fatigue life prediction of gasoline storage tank considering varying current density and weld stress

Critical plane-based fatigue life model under multiaxial random loading

Low-cycle multiaxial random fatigue life prediction model based on equivalent stress transformation

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