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A Study on Failure Mechanisms of Composite Tubes with Woven Fabric Carbon, Glass and Kevlar/epoxy Under Compressive Loadings  

Kim, Jung-Seok (한국철도기술연구원, 철도구조연구실)
Yoon, Hyuk-Jin (한국철도기술연구원, 철도구조연구실)
Lee, Ho-Sun (한국철도기술연구원, 철도구조연구실)
Kwon, Tae-Soo (한국철도기술연구원, 철도구조연구실)
Publication Information
Journal of the Korean Society for Railway / v.12, no.4, 2009 , pp. 590-596 More about this Journal
Abstract
In this study, the failure modes and energy absorption characteristics of four different kinds of circular tubes made of carbon, glass, Kevlar and carbon-Kevlar hybrid fibres composites with epoxy resin have been evaluated. To achieve these goals, compressive tests were conducted for the tubes under 10mm/min loading speed. Based on the test results, the carbon/epoxy tube showed the best energy absorption capability, while carbon-Kevlar/epoxy tubes were worst. In the failure mode during crushing, both of the carbon/epoxy tubes and the glass/epoxy tubes were crushed by brittle fracturing mode. The Kevlar/epoxy tubes were collapsed by local buckling mode like steel, while the carbon-Kevlar hybrid tubes were collapsed by mixed mode of local buckling and lamina bending.
Keywords
Composite Tube; Energy absorption; Quasi-static; Failure mechanism;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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