A Triangular Finite Element for the Geometrically Nonlinear Analysis of Composite Shells

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Abstract

This paper is devoted to the development of a new geometrically nonlinear finite element for composite-material shell structures.
Nonlinear analysis of composite-material shell structures using the finite element method and the search for a satisfactory finite element for shell structural nonlinear analysis has been active for decades. One main approach for formulating shell finite elements is to enhance a linear shell element to perform nonlinear analysis by adding an appropriate geometric stiffness matrix and implementing a full Newton-Raphson procedure to the linear analysis computer program (Argyris et al. [1], Mohan and Kapania [2]). The presented finite element is, in a broad view, a part of this approach.
Original languageEnglish
Title of host publicationProceedings of the Ninth International Conference on Civil and Structural Engineering Computing
EditorsB.H.V. Topping
PublisherCivil-Comp Press
ISBN (Print)0-948749-89-X
DOIs
StatePublished - 23 Jun 2021

Keywords

  • Geometric stiffness matrix
  • Nonlinear analysis
  • Composite shells
  • snap through
  • Large rotation
  • Lamina

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