A review on mechanisms and models for very-high-cycle fatigue of metallic materials

HONG Youshi; SUN Chengqi; LIU Xiaolong

doi:10.6052/1000-0992-17-002

Volume 48 Issue 1

Feb. 2018

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HONG Youshi, SUN Chengqi, LIU Xiaolong. A review on mechanisms and models for very-high-cycle fatigue of metallic materials[J]. Advances in Mechanics, 2018, 48(1): 1801. doi: 10.6052/1000-0992-17-002

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HONG Youshi, SUN Chengqi, LIU Xiaolong. A review on mechanisms and models for very-high-cycle fatigue of metallic materials[J]. Advances in Mechanics, 2018, 48(1): 1801. doi: 10.6052/1000-0992-17-002

HONG Youshi, SUN Chengqi, LIU Xiaolong. A review on mechanisms and models for very-high-cycle fatigue of metallic materials[J]. Advances in Mechanics, 2018, 48(1): 1801. doi: 10.6052/1000-0992-17-002

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A review on mechanisms and models for very-high-cycle fatigue of metallic materials

doi: 10.6052/1000-0992-17-002

¹LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
²School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2017-01-16
Publish Date: 2018-02-08

Abstract

Abstract

The process of fatigue failure beyond 10⁷ cycles for a metallic material subjected to cyclic load is called very-high-cycle fatigue (VHCF). This review will summarize the research progress of VHCF starting with its origination in early 1980s, until the cutting-edge development in recent years. After Introduction, this review contains following parts: Origination of VHCF research, Main characteristics of VHCF, Characteristic region of crack initiation and related parameters for VHCF, Formation mechanisms and models for characteristic region of crack initiation, and Prediction models of VHCF properties. The relevant descriptions attempt to answer the following questions: What is VHCF? Why VHCF should be investigated? What are the essential scientific issues for VHCF? Why the tendency of S-N curve for VHCF is changed? Why crack initiates from the interior of material (specimen) for VHCF? What are the process and the mechanism of interior crack initiation? Some of the questions will be clearly answered, but some of them be just addressed by newly results, which require further exploration.
- very-high-cycle fatigue (VHCF),
- crack initiation,
- characteristic dimension,
- fatigue strength,
- fatigue life,
- metallic materials

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References(124)

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