Steel and Composite Structures

  • 제15권2호
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  • Pages.175-202
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  • 2013
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Super convergent laminated composite beam element for lateral stability analysis

  • Kim, Nam-Il (Department of Architectural Engineering, Sejong University) ;
  • Choi, Dong-Ho (Department of Civil and Environmental Engineering, Hanyang University)
  • 투고 : 2012.03.19
  • 심사 : 2013.06.27
  • 발행 : 2013.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

The super convergent laminated composite beam element is newly derived for the lateral stability analysis. For this, a theoretical model of the laminated composite beams is developed based on the first-order shear deformation beam theory. The present laminated beam takes into account the transverse shear and the restrained warping induced shear deformation. The second-order coupling torque resulting from the geometric nonlinearity is rigorously derived. From the principle of minimum total potential energy, the stability equations and force-displacement relationships are derived and the explicit expressions for the displacement parameters are presented by applying the power series expansions of displacement components to simultaneous ordinary differential equations. Finally, the member stiffness matrix is determined using the force-displacement relationships. In order to show accuracy and superiority of the beam element developed by this study, the critical lateral buckling moments for bisymmetric and monosymmetric I-beams are presented and compared with other results available in the literature, the isoparametric beam elements, and shell elements from ABAQUS.

키워드

과제정보

연구 과제 주관 기관 : National Research Foundation of Korea (NRF)

참고문헌

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피인용 문헌

  1. Free vibration analysis of laminated composite beam under room and high temperatures vol.51, pp.1, 2014, https://doi.org/10.12989/sem.2014.51.1.111
  2. Hygro-thermo-mechanical buckling of laminated beam using hyperbolic refined shear deformation theory vol.252, pp.None, 2020, https://doi.org/10.1016/j.compstruct.2020.112689