Structural Engineering and Mechanics

  • 제57권3호
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  • Pages.389-402
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

The finite element model research of the pre-twisted thin-walled beam

  • Chen, Chang Hong (School of Mechanics and Civil Engineering, Northwestern Polytechnical University) ;
  • Zhu, Yan Fei (School of Mechanics and Civil Engineering, Northwestern Polytechnical University) ;
  • Yao, Yao (School of Mechanics and Civil Engineering, Northwestern Polytechnical University) ;
  • Huang, Ying (School of Civil Engineering, Xi’an University of Architecture and Technology)
  • 투고 : 2015.04.02
  • 심사 : 2015.12.25
  • 발행 : 2016.02.10
⟨ 이전 논문 다음 논문 ⟩

초록

Based on the traditional mechanical model of thin-walled straight beam, the paper makes analysis and research on the pre-twisted thin-walled beam finite element numerical model. Firstly, based on the geometric deformation differential relationship, the Saint-Venant warping strain of pre-twisted thin-walled beam is deduced. According to the traditional thin-walled straight beam finite element mechanical model, the finite element stiffness matrix considering the Saint-Venant warping deformations is established. At the same time, the paper establishes the element stiffness matrix of the pre-twisted thin-walled beam based on the classic Vlasov Theory. Finally, by calculating the pre-twisted beam with elliptical section and I cross section and contrasting three-dimensional solid finite element using ANSYS, the comparison analysis results show that pre-twisted thin-walled beam element stiffness matrix has good accuracy.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Shanxi National Science Foundation of China, Central Universities

참고문헌

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