A perturbed Lagrangian formulation for the finite element solution of contact problems
- verfasst von
- Juan C. Simo, Peter Wriggers, Robert L. Taylor
- Abstract
Making use of a perturbed Lagrangian formulation, a finite element procedure for contact problems is developed for the general case in which node-to-node contact no longer holds. The proposed procedure leads naturally to a discretization of the contact interface into contact segments. Within the context of a bilinear interpolation for the displacement field, a mixed finite element approximation is introduced by assuming discontinuous contact pressure, constant on the contact segment. Because of this piece-wise constant approximation, the gap function enters into the formulation in an 'average' sense instead of through a point-wise definition. Numerical examples are presented that illustrate the performance of the proposed procedure.
- Externe Organisation(en)
-
University of California at Berkeley
- Typ
- Artikel
- Journal
- Computer Methods in Applied Mechanics and Engineering
- Band
- 50
- Seiten
- 163-180
- Anzahl der Seiten
- 18
- ISSN
- 0045-7825
- Publikationsdatum
- 08.1985
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Numerische Mechanik, Werkstoffmechanik, Maschinenbau, Physik und Astronomie (insg.), Angewandte Informatik
- Elektronische Version(en)
-
https://doi.org/10.1016/0045-7825(85)90088-X (Zugang:
Unbekannt)
