Influence of steel fibers and fiber-reinforced polymers on the impact resistance of one-way concrete slabs
- Authors
- Yoo, Doo-Yeol; Yoon, Young-Soo
- Issue Date
- 3월-2014
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- strain rate; steel fiber-reinforced concrete; LS-DYNA; Impact load; fiber-reinforced polymer
- Citation
- JOURNAL OF COMPOSITE MATERIALS, v.48, no.6, pp.695 - 706
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF COMPOSITE MATERIALS
- Volume
- 48
- Number
- 6
- Start Page
- 695
- End Page
- 706
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/99184
- DOI
- 10.1177/0021998313477167
- ISSN
- 0021-9983
- Abstract
- In this study, to estimate the impact resistance of steel fiber-reinforced concrete slabs strengthened with fiber-reinforced polymer sheets, a series of 50 x 100 x 350 mm(3) sized slabs with 0.5%-1.5% (by volume) of steel fibers and two types of fiber-reinforced polymer sheets were impact-tested using drop-weight impact test machine. From the test results, the maximum impact load, dissipated energy and the number of drops before failure were all increased, whereas the maximum deflection and support rotation were reduced by strengthening the steel fiber-reinforced concrete slabs with externally bonded fiber-reinforced polymer sheets in the tensile zone. It was noticed that the impact resistance of the steel fiber-reinforced concrete slabs was substantially improved by externally strengthening the fiber-reinforced polymer sheets. In addition, the dynamic response of the steel fiber-reinforced concrete slabs strengthened with fiber-reinforced polymer sheets under a low-velocity impact load was analyzed using explicit code LS-DYNA with strain rate-dependent material models and debonding failure analysis. These numerical analyses were verified by comparing with the experimental results.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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