论文信息 - Stability of thin walled structures strongly coupled with contact

Stability of thin walled structures strongly coupled with contact

Stability problems strongly coupled with contact are examined using different contact algorithms. Applying the penalty formulation a high dependence of the buckling load on the penalty parameter is found. This observation becomes clear when considering a classical Euler case. Applying kinematical constraint conditions (close to a Lagrange scheme) for contact on the other hand more consistent results regarding the buckling load are obtained. Thus for a Nitsche scheme a better and more flexible solution is expected. The FE implementation of a Nitsche interface element is carried out. (© 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)

Alexander Konyukhov | Karl Schweizerhof | Ridvan Izi

[1] Peter Hansbo,et al. Stabilized Lagrange multiplier methods for bilateral elastic contact with friction , 2006 .

[2] Alexander Konyukhov,et al. Contact formulation via a velocity description allowing efficiency improvements in frictionless contact analysis , 2004 .