Fatigue Behavior of Precorrosion Deformed Bars
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 9
Abstract
Fatigue tests were conducted on natural corrosion deformed bars. The specimens were taken from a temporarily halted construction project. A method of mass loss was adopted in this study. High-cycle low-amplitude fatigue tests were performed to failure using five levels of cyclical stress range. The fatigue life of medium-corrosion deformed bars reduces sharply compared to that of noncorrosion ones. The failure mechanism in fatigue is examined by using a scanning electron microscope (SEM). Results indicate that the loss in fatigue life comes at the expense of the number of cycles needed to initiate fatigue cracks and is attributed to pitting corrosion.
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Acknowledgments
This research was funded by the National Natural Science Foundation of China (Grant No. 51008182), the Shandong Province Young and Middle-Aged Scientists Research Awards Fund (Grant No. BS2011SF013), the China Postdoctoral Science Foundation (Grant No. 2012M511178), and the Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT13075).
The authors would like to thank the reviewers and editors for their constructive comments to improve this paper. The authors would like to thank X. Zhang at Shandong Jianzhu Univ. for his strong support. The authors also thank their colleagues and students for providing support for this paper.
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Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 9 • September 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 18, 2013
Accepted: Apr 3, 2014
Published online: May 19, 2014
Published in print: Sep 1, 2014
Discussion open until: Oct 19, 2014
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