NDLI: Study on the short fatigue crack initiation and propagation behavior of 42CrMo

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Study on the short fatigue crack initiation and propagation behavior of 42CrMo

Content Provider	SAGE Publishing
Author	Xu, Nan Fu, Zhiwei Wang, Yuan Shen, Xuehui
Copyright Year	2022
Abstract	A micro-tensile fatigue test of 42CrMo alloy steel was carried out. The result shows that the crack initiation and propagation of the material could be characterized with randomness and localization. There existed two sorts of short fatigue crack propagation behaviors for the tested material, that is, self-propagation and joint propagation with other short cracks. A short fatigue crack growth rate function was built considering the propagation characteristics. Moreover, a simulation model of short fatigue crack evolution was built. Total three samples were tested and simulated. The experimental result was in good consistent with that from simulation, both showing that the crack growth rate accelerated first and then decelerated during propagation.
Related Links	https://journals.sagepub.com/doi/pdf/10.1177/16878132221119928?download=true
ISSN	16878132
Issue Number	9
Volume Number	14
Journal	Advances in Mechanical Engineering (ADE)
e-ISSN	16878140
DOI	10.1177/16878132221119928
Language	English
Publisher	Sage Publications UK
Publisher Date	2022-09-02
Publisher Place	London
Access Restriction	Open
Rights Holder	© The Author(s) 2022
Subject Keyword	Microscopic fatigue test crack behavior crack simulation 42CrMo crack growth rate
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering

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