Solution representations for Trefftz-type finite elements

Authors

  • Reinhard Piltner University of Nebraska-Lincoln
    United States

Keywords:

Trefftz functions, Trefftz-type finite elements

Abstract

Solution representations are available for several differential equations. For elasticity problems some of the solution representations are considered in this paper. The solution representations can be used for a systematic construction of Trefftz functions for the derivation of Trefftz-type finite elements. For the example of a thick plate a set of Trefftz functions is presented.

References

[l] E. Trefftz . Ein Gegenstück zum Ritzschen Verfahren. In: 2. Int. Kongr. für Techn. Mech., pages 131- 137, Zurich, 1926.
[2] E. Stein. Die Kombination des modifizierten Trefftzschen Verfahrens mit der Methode der finiten Elemente. In: Finite Elemente in der Statik, pages 172- 185. Verlag Ernst & Sohn, Berlin, 1973.
[3] G. Ruoff. Die praktische Berechnung der Kopplungsmatrizen bei der Kombination der Trefftzschen Methode und der Methode der finiten Elemente. In: Finite Elemente in der Statik, pages 242- 259. Verlag Ernst & Sohn, Berlin, 1973.
[4] O. C. Zienkiewicz, D. W. Kelly, P. Bettess. The coupling of finite element and boundary solution procedures. Int. J. Numer. Meth. Eng. , 11: 355- 376, 1977.
[5] J .P.B .M. Almeida, O.J.B .A. Pereira. A set of hybrid equilibrium finite element models for the analysis of hreedimensional solids. Int. J. Numer. Meth. Eng., 39: 2789- 2802, 1996.

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Published

2023-01-26

Issue

pp. 587-596

Section

Articles

How to Cite

Piltner, R. (2023). Solution representations for Trefftz-type finite elements. Computer Assisted Methods in Engineering and Science, 10(4), 587-596. https://cames3.ippt.pan.pl/index.php/cames/article/view/1067