On the stability analysis of hyperelastic boundary value problems using three- and two-field mixed finite element formulations

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Jörg Schröder
  • Nils Viebahn
  • Peter Wriggers
  • Ferdinando Auricchio
  • Karl Steeger

Organisationseinheiten

Externe Organisationen

  • Universität Duisburg-Essen
  • Università degli Studi di Pavia
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Details

OriginalspracheEnglisch
Seiten (von - bis)479-492
Seitenumfang14
FachzeitschriftComputational mechanics
Jahrgang60
Ausgabenummer3
PublikationsstatusVeröffentlicht - 5 Mai 2017

Abstract

In this work we investigate different mixed finite element formulations for the detection of critical loads for the possible occurrence of bifurcation and limit points. In detail, three- and two-field formulations for incompressible and quasi-incompressible materials are analyzed. In order to apply various penalty functions for the volume dilatation in displacement/pressure mixed elements we propose a new consistent scheme capturing the non linearities of the penalty constraints. It is shown that for all mixed formulations, which can be reduced to a generalized displacement scheme, a straight forward stability analysis is possible. However, problems based on the classical saddle-point structure require a different analyses based on the change of the signature of the underlying matrix system. The basis of these investigations is the work from Auricchio et al. (Comput Methods Appl Mech Eng 194:1075–1092, 2005, Comput Mech 52:1153–1167, 2013).

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On the stability analysis of hyperelastic boundary value problems using three- and two-field mixed finite element formulations. / Schröder, Jörg; Viebahn, Nils; Wriggers, Peter et al.
in: Computational mechanics, Jahrgang 60, Nr. 3, 05.05.2017, S. 479-492.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Schröder J, Viebahn N, Wriggers P, Auricchio F, Steeger K. On the stability analysis of hyperelastic boundary value problems using three- and two-field mixed finite element formulations. Computational mechanics. 2017 Mai 5;60(3):479-492. doi: 10.1007/s00466-017-1415-2
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abstract = "In this work we investigate different mixed finite element formulations for the detection of critical loads for the possible occurrence of bifurcation and limit points. In detail, three- and two-field formulations for incompressible and quasi-incompressible materials are analyzed. In order to apply various penalty functions for the volume dilatation in displacement/pressure mixed elements we propose a new consistent scheme capturing the non linearities of the penalty constraints. It is shown that for all mixed formulations, which can be reduced to a generalized displacement scheme, a straight forward stability analysis is possible. However, problems based on the classical saddle-point structure require a different analyses based on the change of the signature of the underlying matrix system. The basis of these investigations is the work from Auricchio et al. (Comput Methods Appl Mech Eng 194:1075–1092, 2005, Comput Mech 52:1153–1167, 2013).",
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