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http://dx.doi.org/10.7234/kscm.2009.22.6.032

Effects of Reinforced Fibers on Energy Absorption Characteristics under Quasi-static Compressive Loading of Composite Circular Tubes  

Kim, Jung-Seok (한국철도기술연구원 철도구조연구실)
Yoon, Huk-Jin (한국철도기술연구원 철도구조연구실)
Lee, Ho-Sun (한국철도기술연구원 철도구조연구실)
Choi, Kyung-Hoon (한국화이바 복합재료 연구소)
Publication Information
Composites Research / v.22, no.6, 2009 , pp. 32-38 More about this Journal
Abstract
In this study, the energy absorption capabilities and failure modes of four different kinds of circular tubes made of carbon, Kevlar and carbon-Kevlar hybrid composites with epoxy resin have been evaluated. In order to achieve these goals, these tubes were fabricated with unidirectional prepregs and compressive tests were conducted for the tubes under 10mm/min loading speed. From the test results, carbon/epoxy tubes were collapsed by brittle fracturing mode and showed the best energy absorption capabilities, while Kevlar/epoxy tubes were crushed by local buckling mode and worst. The hybrid [$90_C/0_K$] tubes were failed in a local bucking mode and showed good post crushing integrity, whereas [$90_K/0_C$] tubes were failed in a lamina bending mode and bad post crushing integrity.
Keywords
Failure modes; Energy absorption; Post crushing integrity; Composite tube;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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