Surface vs. interior failure behaviors in a structural steel under gigacycle fatigue: Failure analysis and life prediction

Wei Li; Huang Yuan; Zhenduo Sun; Zhenyu Zhang

doi:10.1016/j.ijfatigue.2014.02.022

Surface vs. interior failure behaviors in a structural steel under gigacycle fatigue: Failure analysis and life prediction

Wei Li^*
, Huang Yuan
, Zhenduo Sun
, Zhenyu Zhang

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

The failure behaviors of a structural Cr-Ni-W steel under gigacycle fatigue were investigated, and a life prediction method based on the crack growth was proposed. The discovery of two failure phenomena, including the coexistence of surface and interior cracks and the coexistence of multiple fish-eyes, verifies the possibility of competing failure. The developed interior crack growth model reveals the failure progress at a slow rate below 10^-10 m/cycle within the fish-eye induced by the inclusion or the inhomogeneous matrix area. The validity of the life prediction method is proved by the good agreement between the predicted and the experimental lives.

Original language	English
Pages (from-to)	42-53
Number of pages	12
Journal	International Journal of Fatigue
Volume	64
DOIs	https://doi.org/10.1016/j.ijfatigue.2014.02.022
Publication status	Published - Jul 2014

Keywords

Competing failure
Gigacycle fatigue
Inhomogeneous matrix area
Life prediction
Multiple fish-eyes

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10.1016/j.ijfatigue.2014.02.022

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title = "Surface vs. interior failure behaviors in a structural steel under gigacycle fatigue: Failure analysis and life prediction",

abstract = "The failure behaviors of a structural Cr-Ni-W steel under gigacycle fatigue were investigated, and a life prediction method based on the crack growth was proposed. The discovery of two failure phenomena, including the coexistence of surface and interior cracks and the coexistence of multiple fish-eyes, verifies the possibility of competing failure. The developed interior crack growth model reveals the failure progress at a slow rate below 10-10 m/cycle within the fish-eye induced by the inclusion or the inhomogeneous matrix area. The validity of the life prediction method is proved by the good agreement between the predicted and the experimental lives.",

keywords = "Competing failure, Gigacycle fatigue, Inhomogeneous matrix area, Life prediction, Multiple fish-eyes",

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T1 - Surface vs. interior failure behaviors in a structural steel under gigacycle fatigue

T2 - Failure analysis and life prediction

AU - Li, Wei

AU - Yuan, Huang

AU - Sun, Zhenduo

AU - Zhang, Zhenyu

PY - 2014/7

Y1 - 2014/7

N2 - The failure behaviors of a structural Cr-Ni-W steel under gigacycle fatigue were investigated, and a life prediction method based on the crack growth was proposed. The discovery of two failure phenomena, including the coexistence of surface and interior cracks and the coexistence of multiple fish-eyes, verifies the possibility of competing failure. The developed interior crack growth model reveals the failure progress at a slow rate below 10-10 m/cycle within the fish-eye induced by the inclusion or the inhomogeneous matrix area. The validity of the life prediction method is proved by the good agreement between the predicted and the experimental lives.

AB - The failure behaviors of a structural Cr-Ni-W steel under gigacycle fatigue were investigated, and a life prediction method based on the crack growth was proposed. The discovery of two failure phenomena, including the coexistence of surface and interior cracks and the coexistence of multiple fish-eyes, verifies the possibility of competing failure. The developed interior crack growth model reveals the failure progress at a slow rate below 10-10 m/cycle within the fish-eye induced by the inclusion or the inhomogeneous matrix area. The validity of the life prediction method is proved by the good agreement between the predicted and the experimental lives.

KW - Competing failure

KW - Gigacycle fatigue

KW - Inhomogeneous matrix area

KW - Life prediction

KW - Multiple fish-eyes

UR - https://www.scopus.com/pages/publications/84897835145

U2 - 10.1016/j.ijfatigue.2014.02.022

DO - 10.1016/j.ijfatigue.2014.02.022

M3 - Article

AN - SCOPUS:84897835145

SN - 0142-1123

VL - 64

SP - 42

EP - 53

JO - International Journal of Fatigue

JF - International Journal of Fatigue

ER -

Surface vs. interior failure behaviors in a structural steel under gigacycle fatigue: Failure analysis and life prediction

Abstract

Keywords

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