Applied Mathematics and Mechanics

, Volume 31, Issue 1, pp 125–134 | Cite as

A 17-node quadrilateral spline finite element using the triangular area coordinates

  • Juan Chen (陈娟)Email author
  • Chong-jun Li (李崇君)
  • Wan-ji Chen (陈万吉)


Isoparametric quadrilateral elements are widely used in the finite element method. However, they have a disadvantage of accuracy loss when elements are distorted. Spline functions have properties of simpleness and conformality. A 17-node quadrilateral element has been developed using the bivariate quartic spline interpolation basis and the triangular area coordinates, which can exactly model the quartic displacement fields. Some appropriate examples are employed to illustrate that the element possesses high precision and is insensitive to mesh distortions.

Key words

17-node quadrilateral element bivariate spline interpolation basis triangular area coordinates B-net method fourth-order completeness 

Chinese Library Classification

O241 O343 

2000 Mathematics Subject Classification

65D07 74S05 


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Copyright information

© Shanghai University and Springer Berlin Heidelberg 2010

Authors and Affiliations

  • Juan Chen (陈娟)
    • 1
    Email author
  • Chong-jun Li (李崇君)
    • 1
  • Wan-ji Chen (陈万吉)
    • 2
    • 3
  1. 1.School of Mathematical SciencesDalian University of TechnologyDalianP. R. China
  2. 2.State Key Laboratory for Structural Analysis of Industrial EquipmentDalian University of TechnologyDalianP. R. China
  3. 3.Institute for Structural Analysis of AerocraftShenyang Institute of Aeronautical EngineeringShenyangP. R. China

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