Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 류두열 | - |
dc.date.accessioned | 2020-11-09T08:00:30Z | - |
dc.date.available | 2020-11-09T08:00:30Z | - |
dc.date.issued | 2019-11 | - |
dc.identifier.citation | CONSTRUCTION AND BUILDING MATERIALS, v. 224, Page. 743-761 | en_US |
dc.identifier.issn | 0950-0618 | - |
dc.identifier.issn | 1879-0526 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0950061819317738?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/155275 | - |
dc.description.abstract | In this study, an attempt was made to investigate the effect of end-hook angle on the rate-dependent bond-slip behavior of novel half-hooked steel fibers embedded in ultra-high-performance concrete (UHPC). For evaluating the effects of the number of plastic hinges and length in the end-hook portion, commercially available hooked steel fiber and short half-hooked steel fiber were additionally used. Three different end-hook angles of 30°, 45°, and 60°, two different fiber inclination angles of 0° and 45° to take into account the random orientation of fibers in the composites, and various loading rates ranging from 0.018 mm/s (static) to 1186 mm/s (impact) were considered. Test results indicated that the most influential factor on the static pullout resistance in terms of the bond strengths and pullout energy was the length in the end-hook portion rather than the number of plastic hinges and end-hook angle if the fibers were pulled out without breakage. Increasing the end-hook angle was effective in enhancing the static and dynamic bond strengths and pullout energies of half-hooked fibers in UHPC given the pullout failure mode, and there was no effect of it if they were ruptured. In addition, the increase in length in the end-hook portion significantly improved the static bond strength and pullout energy in the aligned condition, whereas its effectiveness decreased under the impact loads. The use of half-hooked fiber or shorter length in the end-hook portion was effective in terms of the rate sensitivity to the pullout resistance compared with the commercial hooked fiber or the longer-length one, and the bond strength became more sensitive to the loading rate if the fiber was aligned rather than inclined. | en_US |
dc.description.sponsorship | This research was supported by a Grant (19CTAP-C152069-01) from Technology Advancement Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCI LTD | en_US |
dc.subject | Ultra-high-performance concrete | en_US |
dc.subject | Novel half-hooked steel fiber | en_US |
dc.subject | End-hook angle | en_US |
dc.subject | Bond-slip behavior | en_US |
dc.subject | Rate sensitivity | en_US |
dc.title | Bond-slip response of novel half-hooked steel fibers in ultra-high-performance concrete | en_US |
dc.type | Article | en_US |
dc.relation.volume | 224 | - |
dc.identifier.doi | 10.1016/j.conbuildmat.2019.07.099 | - |
dc.relation.page | 743-761 | - |
dc.relation.journal | CONSTRUCTION AND BUILDING MATERIALS | - |
dc.contributor.googleauthor | Yoo, Doo-Yeol | - |
dc.contributor.googleauthor | Choi, Hong-Joon | - |
dc.contributor.googleauthor | Kim, Soonho | - |
dc.relation.code | 2019041376 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ARCHITECTURAL ENGINEERING | - |
dc.identifier.pid | dyyoo | - |
dc.identifier.researcherID | AAR-4284-2020 | - |
dc.identifier.orcid | https://orcid.org/0000-0003-2814-5482 | - |
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