• Title/Summary/Keyword: steel fibres

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A Study on Failure Mechanisms of Composite Tubes with Woven Fabric Carbon, Glass and Kevlar/epoxy Under Compressive Loadings (직조된 탄소, 유리 및 케블라 섬유 복합소재 튜브의 압축하중하에서 파손 메커니즘 분석 연구)

  • Kim, Jung-Seok;Yoon, Hyuk-Jin;Lee, Ho-Sun;Kwon, Tae-Soo
    • Journal of the Korean Society for Railway
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    • v.12 no.4
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    • pp.590-596
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    • 2009
  • 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.