Multiaxial Fatigue Life Prediction of 50CrVA Spring Steel under Proportional Loading

Zhao, Kai; He, Yu Huai; Liu, Xin Ling

doi:10.4028/www.scientific.net/amr.887-888.270

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Nonlinear Damage Correction Model1

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2021

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“…According to the Manson-Halford method, 38 the expression of crack propagation is obtained, as shown in equation (1).…”

Section: Nonlinear Damage Correction Modelmentioning

confidence: 99%

Fatigue life prediction of train wheel shaft based on load spectrum characteristics

Luo

Wang

Liu

et al. 2021

Advances in Mechanical Engineering

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Based on the analysis of load spectrum data, the loading sequence and the interaction between loads are considered, a fatigue life prediction model based on load spectrum is proposed. The load spectrum is preprocessed and the probability density function of mean and amplitude are fitted. The running condition of the train is analyzed, the one-dimensional program load spectrum of wheel and axle load is constructed by extrapolating the load spectrum. According to the modified fatigue cumulative damage method, the fatigue life of the axle is predicted with the one-dimensional program load spectrum. The relevant factors that affect the strength of the part are fully considers in the model. It more accurately reflects the objective facts of the component fatigue process. The result has more engineering reference significance and it provides a theoretical basis for the design and manufacture of train axles and ensuring safe operation.

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“…According to the Manson-Halford method, 38 the expression of crack propagation is obtained, as shown in equation (1).…”

Section: Nonlinear Damage Correction Modelmentioning

confidence: 99%

Fatigue life prediction of train wheel shaft based on load spectrum characteristics

Luo

Wang

Liu

et al. 2021

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

Multiaxial Fatigue Life Prediction of 50CrVA Spring Steel under Proportional Loading

Cited by 1 publication

References 8 publications

Fatigue life prediction of train wheel shaft based on load spectrum characteristics

Fatigue life prediction of train wheel shaft based on load spectrum characteristics

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