Experimental Investigation into Corrosion Effect on Mechanical Properties of High Strength Steel Bars under Dynamic Loadings
Joint Authors
Chen, Hui
Zhang, Jinjin
Yang, Jin
Ye, Feilong
Source
International Journal of Corrosion
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-01-01
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The tensile behaviors of corroded steel bars are important in the capacity evaluation of corroded reinforced concrete structures.
The present paper studies the mechanical behavior of the corroded high strength reinforcing steel bars under static and dynamic loading.
High strength reinforcing steel bars were corroded by using accelerated corrosion methods and the tensile tests were carried out under different strain rates.
The results showed that the mechanical properties of corroded high strength steel bars were strain rate dependent, and the strain rate effect decreased with the increase of corrosion degree.
The decreased nominal yield and ultimate strengths were mainly caused by the reduction of cross-sectional areas, and the decreased ultimate deformation and the shortened yield plateau resulted from the intensified stress concentration at the nonuniform reduction.
Based on the test results, reduction factors were proposed to relate the tensile behaviors with the corrosion degree and strain rate for corroded bars.
A modified Johnson-Cook strength model of corroded high strength steel bars under dynamic loading was proposed by taking into account the influence of corrosion degree.
Comparison between the model and test results showed that proposed model properly describes the dynamic response of the corroded high strength rebars.
American Psychological Association (APA)
Chen, Hui& Zhang, Jinjin& Yang, Jin& Ye, Feilong. 2018. Experimental Investigation into Corrosion Effect on Mechanical Properties of High Strength Steel Bars under Dynamic Loadings. International Journal of Corrosion،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1169885
Modern Language Association (MLA)
Chen, Hui…[et al.]. Experimental Investigation into Corrosion Effect on Mechanical Properties of High Strength Steel Bars under Dynamic Loadings. International Journal of Corrosion No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1169885
American Medical Association (AMA)
Chen, Hui& Zhang, Jinjin& Yang, Jin& Ye, Feilong. Experimental Investigation into Corrosion Effect on Mechanical Properties of High Strength Steel Bars under Dynamic Loadings. International Journal of Corrosion. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1169885
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169885