Impact of corrosion on low-cycle fatigue degradation of reinforcing bars with the effect of inelastic buckling

Mehdi M Kashani; Peyman Alagheband; Rafid Khan; Sean A Davis

doi:10.1016/j.ijfatigue.2015.03.013

Impact of corrosion on low-cycle fatigue degradation of reinforcing bars with the effect of inelastic buckling

Mehdi M Kashani, Peyman Alagheband, Rafid Khan, Sean A Davis

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

The combined effect of inelastic buckling and chloride induced corrosion damage on low-cycle high amplitude fatigue life of embedded reinforcing bars in concrete is investigated experimentally. A total of forty eight low-cycle fatigue tests on corroded reinforcing bars varied in percentage mass loss, strain amplitudes and buckling lengths are conducted. The failure modes and crack propagation are investigated by fractography of fracture surfaces using scanning electron microscope. The results show that the inelastic buckling, percentage mass loss and nonuniform corrosion pattern are the main parameters affecting the low-cycle fatigue life of reinforcing bars. It was found that the fatigue life of corroded reinforcing bars combined with inelastic buckling has a significant path dependency. The results show that in some cases the number of cycles to failure of corroded bars under constant amplitude fatigue test is increased.

Original language	English
Pages (from-to)	174–185
Number of pages	12
Journal	International Journal of Fatigue
Volume	77
Early online date	20 Mar 2015
DOIs	https://doi.org/10.1016/j.ijfatigue.2015.03.013
Publication status	Published - Aug 2015

Keywords

Low-cycle Fatigue
Corrosion
Stress-Strain Relations
Cyclic Behaviour
Reinforcing Steel
Buckling

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10.1016/j.ijfatigue.2015.03.013

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NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Fatigue. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Fatigue, 77, (2015), DOI: 10.1016/j.ijfatigue.2015.03.013
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Composites Innovation from Atoms to Applications EP/K035746/1
Wisnom, M. R. (Principal Investigator), Potter, K. D. (Principal Investigator), Hallett, S. R. (Principal Investigator), Kuball, M. H. H. (Principal Investigator), Etches, J. A. (Principal Investigator) & Davis, S. A. (Co-Investigator)
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@article{0fe533c643e44b05aa11e34205f5d2ed,

title = "Impact of corrosion on low-cycle fatigue degradation of reinforcing bars with the effect of inelastic buckling",

abstract = "The combined effect of inelastic buckling and chloride induced corrosion damage on low-cycle high amplitude fatigue life of embedded reinforcing bars in concrete is investigated experimentally. A total of forty eight low-cycle fatigue tests on corroded reinforcing bars varied in percentage mass loss, strain amplitudes and buckling lengths are conducted. The failure modes and crack propagation are investigated by fractography of fracture surfaces using scanning electron microscope. The results show that the inelastic buckling, percentage mass loss and nonuniform corrosion pattern are the main parameters affecting the low-cycle fatigue life of reinforcing bars. It was found that the fatigue life of corroded reinforcing bars combined with inelastic buckling has a significant path dependency. The results show that in some cases the number of cycles to failure of corroded bars under constant amplitude fatigue test is increased. ",

keywords = "Low-cycle Fatigue, Corrosion, Stress-Strain Relations, Cyclic Behaviour , Reinforcing Steel, Buckling ",

author = "Kashani, {Mehdi M} and Peyman Alagheband and Rafid Khan and Davis, {Sean A}",

year = "2015",

month = aug,

doi = "10.1016/j.ijfatigue.2015.03.013",

language = "English",

volume = "77",

pages = "174–185",

journal = "International Journal of Fatigue",

issn = "0142-1123",

publisher = "Elsevier",

}

TY - JOUR

T1 - Impact of corrosion on low-cycle fatigue degradation of reinforcing bars with the effect of inelastic buckling

AU - Kashani, Mehdi M

AU - Alagheband, Peyman

AU - Khan, Rafid

AU - Davis, Sean A

PY - 2015/8

Y1 - 2015/8

N2 - The combined effect of inelastic buckling and chloride induced corrosion damage on low-cycle high amplitude fatigue life of embedded reinforcing bars in concrete is investigated experimentally. A total of forty eight low-cycle fatigue tests on corroded reinforcing bars varied in percentage mass loss, strain amplitudes and buckling lengths are conducted. The failure modes and crack propagation are investigated by fractography of fracture surfaces using scanning electron microscope. The results show that the inelastic buckling, percentage mass loss and nonuniform corrosion pattern are the main parameters affecting the low-cycle fatigue life of reinforcing bars. It was found that the fatigue life of corroded reinforcing bars combined with inelastic buckling has a significant path dependency. The results show that in some cases the number of cycles to failure of corroded bars under constant amplitude fatigue test is increased.

AB - The combined effect of inelastic buckling and chloride induced corrosion damage on low-cycle high amplitude fatigue life of embedded reinforcing bars in concrete is investigated experimentally. A total of forty eight low-cycle fatigue tests on corroded reinforcing bars varied in percentage mass loss, strain amplitudes and buckling lengths are conducted. The failure modes and crack propagation are investigated by fractography of fracture surfaces using scanning electron microscope. The results show that the inelastic buckling, percentage mass loss and nonuniform corrosion pattern are the main parameters affecting the low-cycle fatigue life of reinforcing bars. It was found that the fatigue life of corroded reinforcing bars combined with inelastic buckling has a significant path dependency. The results show that in some cases the number of cycles to failure of corroded bars under constant amplitude fatigue test is increased.

KW - Low-cycle Fatigue

KW - Corrosion

KW - Stress-Strain Relations

KW - Cyclic Behaviour

KW - Reinforcing Steel

KW - Buckling

U2 - 10.1016/j.ijfatigue.2015.03.013

DO - 10.1016/j.ijfatigue.2015.03.013

M3 - Article (Academic Journal)

SN - 0142-1123

VL - 77

SP - 174

EP - 185

JO - International Journal of Fatigue

JF - International Journal of Fatigue

ER -

Impact of corrosion on low-cycle fatigue degradation of reinforcing bars with the effect of inelastic buckling

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Keywords

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Composites Innovation from Atoms to Applications EP/K035746/1

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