Dynamic Behavior of PET FRP and Its Preliminary Application in Impact Strengthening of Concrete Columns

dc.contributor.authorBai, Yu-Lei
dc.contributor.authorYan, Zhi-Wei
dc.contributor.authorOzbakkaloglu, Togay
dc.contributor.authorDai, Jian-Guo
dc.contributor.authorJia, Jun-Feng
dc.contributor.authorJia, Jun-Bo
dc.date.accessioned2021-07-12T15:18:36Z
dc.date.available2021-07-12T15:18:36Z
dc.date.issued2019-11
dc.description.abstractPolyethylene terephthalate (PET) fiber has attracted significant attention for reinforced concrete (RC) structure rehabilitation due to its large rupture strain (LRS; more than 7%) characteristic and recyclability from waste plastic bottles. This study presents a dynamic tensile test of PET fiber bundles performed using a drop-weight impact system. Results showed that the tensile strength and the elastic modulus of the PET fiber bundles increased, whereas the failure strain and the toughness decreased with the increasing strain rate from 1/600 to 160 s−1. In addition, the performance of concrete confined with the PET fiber-reinforced polymer (FRP) under impact loading was investigated based on a 75 mm-diameter split Hopkinson pressure bar (SHPB) device and a drop-weight apparatus. For the SHPB test, owing to the large rupture strain property of PET FRP, the PET FRP-confined concrete exhibited significantly better performance under impact loading compared to its counterpart confined with carbon FRPs (CFRPs). During the drop-weight test, the confinement of the PET FRP composites to the concrete columns as external jackets not only improved the peak impact force, but also prolonged the impact process.
dc.description.departmentEngineering
dc.formatText
dc.format.extent11 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationBai, Y. L., Yan, Z. W., Ozbakkaloglu, T., Dai, J. G., Jia, J. F., & Jia, J. B. (2019). Dynamic behavior of PET FRP and its preliminary application in impact strengthening of concrete columns. Applied Sciences, 9(23): 4987.
dc.identifier.doihttps://doi.org/10.3390/app9234987
dc.identifier.urihttps://hdl.handle.net/10877/13830
dc.language.isoen
dc.publisherMultidisciplinary Digital Publishing Institute
dc.rights.holder© 2019 The Authors.
dc.rights.licenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
dc.sourceApplied Sciences, 2019, Vol. 9, No. 23, Article 4987.
dc.subjectcomposite materials
dc.subjectpolymeric composites
dc.subjectPET FRP
dc.subjectdynamic behavior
dc.subjectIngram School of Engineering
dc.titleDynamic Behavior of PET FRP and Its Preliminary Application in Impact Strengthening of Concrete Columns
dc.typeArticle

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