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• Galerkin formulations of isogeometric shell analysis: Alleviating locking with Greville quadratures and higher-order elements

  Publikacja

  • Z. Zou
  • T. Hughes
  • M. Scott
  • R. Sauer
  • E. Savitha

  - COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING - Rok 2021

  We propose new quadrature schemes that asymptotically require only four in-plane points for Reissner–Mindlin shell elements and nine in-plane points for Kirchhoff–Love shell elements in B-spline and NURBS-based isogeometric shell analysis, independent of the polynomial degree p of the elements. The quadrature points are Greville abscissae associated with pth-order B-spline basis functions whose continuities depend on the specific...

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