Fatigue life prediction for aging RC beams considering corrosive environments

Yafei Ma; Yibing Xiang; Lei Wang; Jianren Zhang; Yongming Liu

doi:10.1016/j.engstruct.2014.07.039

Fatigue life prediction for aging RC beams considering corrosive environments

Yafei Ma, Yibing Xiang, Lei Wang, Jianren Zhang, Yongming Liu

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

110 Scopus citations

Abstract

A new crack growth-based corrosion fatigue life prediction method for aging reinforced concrete beam is proposed in this paper. The proposed method couples the corrosion growth kinetics and fatigue crack growth kinetics together. The relationship between corrosion damage morphology and corrosion loss is investigated by the experimental results. A phenomenological model is proposed to obtain the stress concentration factor model under different corrosion loss conditions. Following this, the developed model is integrated with an asymptotic method to calculate the stress intensity factor for the crack at corrosion pit roots. The fatigue life is predicted by the integration of the fatigue crack growth rate curve from the equivalent initial flaw size to the critical length. Probabilistic analysis methodology is proposed to consider various sources of uncertainties for the fatigue life prediction. Fatigue life prediction results are validated with experimental observations for various corroded steel bars and beams available in the literatures.

Original language	English (US)
Pages (from-to)	211-221
Number of pages	11
Journal	Engineering Structures
Volume	79
DOIs	https://doi.org/10.1016/j.engstruct.2014.07.039
State	Published - Nov 15 2014

Keywords

Corrosion fatigue
EIFS
Fatigue crack growth
Life prediction
Reinforced concrete

ASJC Scopus subject areas

Civil and Structural Engineering

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10.1016/j.engstruct.2014.07.039

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title = "Fatigue life prediction for aging RC beams considering corrosive environments",

abstract = "A new crack growth-based corrosion fatigue life prediction method for aging reinforced concrete beam is proposed in this paper. The proposed method couples the corrosion growth kinetics and fatigue crack growth kinetics together. The relationship between corrosion damage morphology and corrosion loss is investigated by the experimental results. A phenomenological model is proposed to obtain the stress concentration factor model under different corrosion loss conditions. Following this, the developed model is integrated with an asymptotic method to calculate the stress intensity factor for the crack at corrosion pit roots. The fatigue life is predicted by the integration of the fatigue crack growth rate curve from the equivalent initial flaw size to the critical length. Probabilistic analysis methodology is proposed to consider various sources of uncertainties for the fatigue life prediction. Fatigue life prediction results are validated with experimental observations for various corroded steel bars and beams available in the literatures.",

keywords = "Corrosion fatigue, EIFS, Fatigue crack growth, Life prediction, Reinforced concrete",

author = "Yafei Ma and Yibing Xiang and Lei Wang and Jianren Zhang and Yongming Liu",

note = "Funding Information: The authors Ma, Wang, and Zhang acknowledge the financial supports from the National Basic Research Program of China (973 Program, Grant No. 2015CB057700 ), the National Natural Science Foundation of China (Grant No. 51478050 ) and the National Science Foundation for Distinguished Young Scholars of Hunan Province (Grant No. 14JJ1022 ). The supports are gratefully acknowledged. The authors also would like to acknowledge the valuable comments from the anonymous reviewers to improve the quality of the manuscript. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "2014",

month = nov,

day = "15",

doi = "10.1016/j.engstruct.2014.07.039",

language = "English (US)",

volume = "79",

pages = "211--221",

journal = "Engineering Structures",

issn = "0141-0296",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Fatigue life prediction for aging RC beams considering corrosive environments

AU - Ma, Yafei

AU - Xiang, Yibing

AU - Wang, Lei

AU - Zhang, Jianren

AU - Liu, Yongming

N1 - Funding Information: The authors Ma, Wang, and Zhang acknowledge the financial supports from the National Basic Research Program of China (973 Program, Grant No. 2015CB057700 ), the National Natural Science Foundation of China (Grant No. 51478050 ) and the National Science Foundation for Distinguished Young Scholars of Hunan Province (Grant No. 14JJ1022 ). The supports are gratefully acknowledged. The authors also would like to acknowledge the valuable comments from the anonymous reviewers to improve the quality of the manuscript. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/11/15

Y1 - 2014/11/15

N2 - A new crack growth-based corrosion fatigue life prediction method for aging reinforced concrete beam is proposed in this paper. The proposed method couples the corrosion growth kinetics and fatigue crack growth kinetics together. The relationship between corrosion damage morphology and corrosion loss is investigated by the experimental results. A phenomenological model is proposed to obtain the stress concentration factor model under different corrosion loss conditions. Following this, the developed model is integrated with an asymptotic method to calculate the stress intensity factor for the crack at corrosion pit roots. The fatigue life is predicted by the integration of the fatigue crack growth rate curve from the equivalent initial flaw size to the critical length. Probabilistic analysis methodology is proposed to consider various sources of uncertainties for the fatigue life prediction. Fatigue life prediction results are validated with experimental observations for various corroded steel bars and beams available in the literatures.

AB - A new crack growth-based corrosion fatigue life prediction method for aging reinforced concrete beam is proposed in this paper. The proposed method couples the corrosion growth kinetics and fatigue crack growth kinetics together. The relationship between corrosion damage morphology and corrosion loss is investigated by the experimental results. A phenomenological model is proposed to obtain the stress concentration factor model under different corrosion loss conditions. Following this, the developed model is integrated with an asymptotic method to calculate the stress intensity factor for the crack at corrosion pit roots. The fatigue life is predicted by the integration of the fatigue crack growth rate curve from the equivalent initial flaw size to the critical length. Probabilistic analysis methodology is proposed to consider various sources of uncertainties for the fatigue life prediction. Fatigue life prediction results are validated with experimental observations for various corroded steel bars and beams available in the literatures.

KW - Corrosion fatigue

KW - EIFS

KW - Fatigue crack growth

KW - Life prediction

KW - Reinforced concrete

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JO - Engineering Structures

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ER -

Fatigue life prediction for aging RC beams considering corrosive environments

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Keywords

ASJC Scopus subject areas

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