Characterization of Fatigue Damage of Crankshaft Remanufacturing Core by Two-Dimensional Magnetic Memory Signal

Nan Xue; Li Hong Dong; Bin Shi Xu; Cheng Chen; Shi Yun Dong

doi:10.4028/www.scientific.net/AMR.538-541.1588

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Characterization of Fatigue Damage of Crankshaft...

Characterization of Fatigue Damage of Crankshaft Remanufacturing Core by Two-Dimensional Magnetic Memory Signal

Abstract:

Fatigue damage degree of crankshaft remanufacturing core was studied based on Metal Magnetic Memory Testing. Bending fatigue test of crankshaft remanufacturing core was conducted on the resonant fatigue test rig and variations of two-dimensional magnetic memory signal distribution in crankshaft pin fillets were studied at different bending fatigue cycle. Experimental research shows that distributions of Hp(x) signals, namely, tangential component of spontaneous stray field and Hp(y) signals, namely, normal component of spontaneous stray field in crankshaft pin fillets have no obvious change with loading cycle when no crack initiation and propagation occur in crankshaft pin fillets. Characteristics of Hp(x) and Hp(y) signal both show dynamic variations when crack in crankshaft pin fillets initiates and extends at medium rate or high rate. Metal Magnetic Memory Testing is a dynamic method for monitoring fatigue crack propagation in crankshaft.

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

1588-1593

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.1588

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Online since:

June 2012

Authors:

Nan Xue, Li Hong Dong, Bin Shi Xu, Cheng Chen, Shi Yun Dong

Keywords:

Bending Fatigue Test, Crankshaft Remanufacturing Core, Metal Magnetic Memory Testing, Pin Fillets, Two-Dimensional Signal

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References

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