펄트루젼 유리섬유-폴리에스터 복합재 판의 좌굴에 대한 안전율 평가Evaluation of Safety Factor on the Buckling of Pultruded Glass Fiber Reinforced Polyester Composite Plate
- Other Titles
- Evaluation of Safety Factor on the Buckling of Pultruded Glass Fiber Reinforced Polyester Composite Plate
- Authors
- 유종호; 윤순종
- Issue Date
- 2017
- Publisher
- 한국복합신소재구조학회
- Keywords
- PFRP; orthotropic; plate buckling analysis; buckling strength; geometric mean; 펄트루젼 섬유보강 복합재; 직교이방성; 판의 좌굴해석; 좌굴강도; 기하평균
- Citation
- 한국복합신소재구조학회 논문집, v.8, no.3, pp.30 - 36
- Journal Title
- 한국복합신소재구조학회 논문집
- Volume
- 8
- Number
- 3
- Start Page
- 30
- End Page
- 36
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/6407
- DOI
- 10.11004/kosacs.2017.8.3.030
- ISSN
- 2093-5145
- Abstract
- The pultruded fiber reinforced polymer plastic (PFRP) is one of the most actively studied composite materials for the structural member in construction industries. In domestic design process, the PFRP member is designed as an isotropic material having only longitudinal material properties for simplicity, because it is too complex to consider orthotrophy of PFRP perfectly. In this study, three cases of buckling analysis of PFRP plate is conducted theoretically and numerically. First, the PFRP plate is considered as an orthotropic material. Second, the PFRP plate is considered as an isotropic plate having only longitudinal material properties. Third, the PFRP plate is considered as an isotropic plate having geometric mean of longitudinal and transverse material properties. As a result of buckling analysis, a buckling strength of PFRP plate as an isotropic plate having only longitudinal material properties is about 2.21 times larger than that of PFRP plate analyzed as an orthotropic plate. On the other hand, a buckling strength of PFRP plate as an isotropic plate having geometric mean material properties is about 1.19 times larger than that of PFRP plate analyzed as an orthotropic plate. In conclusion, the safety factor of 3 used in domestic design process of PFRP member is no longer applicable due to overestimation of buckling strength of PFRP member which leads to nonconservative design.
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Collections - College of Engineering > Civil Engineering Major > 1. Journal Articles
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