Structural Engineering and Mechanics

  • 제4권6호
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  • Pages.655-678
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  • 1996
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Non-conventional formulations for the finite element method

  • de Freitas, J.A. Teixeira (Departamento de Engenharia Civil, Instituto Superior Tecnico.) ;
  • de Almeida, J.P. Moitinho (Departamento de Engenharia Civil, Instituto Superior Tecnico.) ;
  • Peraira, E.M.B. Ribeiro (Departamento de Engenharia Civil, Instituto Superior Tecnico.)
  • 발행 : 1996.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

The paper reports on alternative hybrid/mixed formulations being developed by the Structural Analysis Research Group of Institute Superior T$\acute{e}$cnico. These formulations open the scope and increase the power of the finite element method by allowing different fields to be independently approximated, within certain consistency criteria, and by enhancing the use of a wide range of approximation functions. They have been applied to the analysis of 2-D problems, laminar structures and solids, using different constitutive relations, both in quasi-static and dynamic regimes. The fundamental properties of the formulations are identified and assessed and their performance is illustrated using simple, linear applications.

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참고문헌

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  8. Comparative analysis of hybrid-trefftz stress and displacement elements vol.6, pp.1, 1999, https://doi.org/10.1007/BF02828329
  9. Wavelets in hybrid-mixed stress elements vol.190, pp.31, 2001, https://doi.org/10.1016/S0045-7825(00)00313-3