한국철도학회논문집 (Journal of the Korean Society for Railway)

  • 제9권1호
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  • Pages.57-62
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  • 2006
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  • 1738-6225(pISSN)
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  • 2288-2235(eISSN)
한국철도학회 (The Korean Society for Railway)
권호 표지

T형 복합재료 기둥의 좌굴

Buckling of T-Shaped Composite Columns

  • 발행 : 2006.02.01
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초록

Composite thin-walled members for civil engineering application are mainly produced by pultrusion technique, and they are generally made of a polymeric resin system reinforced by E-glass fibers due to economical reason. This material combination results in low elastic moduli of the composite materials and makes the design of composite members to be governed by stability limit state. Therefore the buckling behavior of composite thin-walled members was experimentally investigated in the present study. Axial compression was applied on each specimens by a hydraulic ram and knife edge fixtures were placed at both ends to simulate simple boundary condition. Axial compression, lateral displacements and twisting at the mid-height of each specimen were measured by a set of transducers during buckling test. The experimental buckling loads were compared with analytical results obtained through isotropic formulas. In the calculation of analytical results, elastic properties such as Young's modulus(E) and shear modulus(G) were replaced with EL and GLT obtained from coupon tests, respectively.

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참고문헌

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