Experimental characterization and numerical modeling on the external impacting of high-speed railway axle EA4T steel

Xin Zhao,Shengchuan Wu,Jianguang Bao,Ni Ao,Wenjie Peng,Wei Sun

Engineering Failure Analysis（2021）

Cited 19|Views3

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Abstract

•Externally impacted process was simulated using the Johnson-Cook material model.•Impacting speeds of 100 m/s and 138 m/s were selected for introducing the foreign damage.•Johnson-Cook material model can effectively rebuild the damage evolution.•The external impacting inside railway axles shows a velocity dependence.

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Key words

High-speed railway axles,Foreign object damage,Johnson-Cook material model,Residual stress,Crack initiation and propagation

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