Crack closure effects on fatigue crack growth thresholds and remaining life in an hsla steel

J. A. Todd; L. Chen; E. Y. Yankov; S. Mostovoy

doi:10.1115/1.2842264

Crack closure effects on fatigue crack growth thresholds and remaining life in an hsla steel

J. A. Todd, L. Chen, E. Y. Yankov, S. Mostovoy

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

2 Scopus citations

Abstract

The effects of crack closure on the near-threshold corrosion fatigue crack growth behavior of Mil S-24645 HSLA steel and its weld metal have been investigated in air, ASTM seawater at the free corrosion potential, and ASTM seawater at -0.8V and -l.OV (SCE) using frequencies of 10, 2, and 0.2 Hz, and a stress ratio, R - 0.1. Remaining life, in the presence and absence of crack closure, has been estimated as a function of applied stress range for a structure containing a 3-mm-deep surface semi-elliptical flaw.

Original language	English (US)
Pages (from-to)	37-44
Number of pages	8
Journal	Journal of Pressure Vessel Technology, Transactions of the ASME
Volume	119
Issue number	1
DOIs	https://doi.org/10.1115/1.2842264
State	Published - Feb 1997

All Science Journal Classification (ASJC) codes

Safety, Risk, Reliability and Quality
Mechanics of Materials
Mechanical Engineering

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abstract = "The effects of crack closure on the near-threshold corrosion fatigue crack growth behavior of Mil S-24645 HSLA steel and its weld metal have been investigated in air, ASTM seawater at the free corrosion potential, and ASTM seawater at -0.8V and -l.OV (SCE) using frequencies of 10, 2, and 0.2 Hz, and a stress ratio, R - 0.1. Remaining life, in the presence and absence of crack closure, has been estimated as a function of applied stress range for a structure containing a 3-mm-deep surface semi-elliptical flaw.",

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AU - Chen, L.

AU - Yankov, E. Y.

AU - Mostovoy, S.

PY - 1997/2

Y1 - 1997/2

N2 - The effects of crack closure on the near-threshold corrosion fatigue crack growth behavior of Mil S-24645 HSLA steel and its weld metal have been investigated in air, ASTM seawater at the free corrosion potential, and ASTM seawater at -0.8V and -l.OV (SCE) using frequencies of 10, 2, and 0.2 Hz, and a stress ratio, R - 0.1. Remaining life, in the presence and absence of crack closure, has been estimated as a function of applied stress range for a structure containing a 3-mm-deep surface semi-elliptical flaw.

AB - The effects of crack closure on the near-threshold corrosion fatigue crack growth behavior of Mil S-24645 HSLA steel and its weld metal have been investigated in air, ASTM seawater at the free corrosion potential, and ASTM seawater at -0.8V and -l.OV (SCE) using frequencies of 10, 2, and 0.2 Hz, and a stress ratio, R - 0.1. Remaining life, in the presence and absence of crack closure, has been estimated as a function of applied stress range for a structure containing a 3-mm-deep surface semi-elliptical flaw.

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Crack closure effects on fatigue crack growth thresholds and remaining life in an hsla steel

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