Presentation Details
Singular mass matrices for isogeometric finite element analysis of dynamic contact
Thursday, 12 Oct 2017; 17:20 - 17:40 in room 7.04
In Session:
MS05-2: Computational Contact Mechanics (Show complete Mini Symposium)
Thursday, 12 Oct 2017; 16:00 - 18:00 in room 7.04
Show complete Session
1st and presenting Author
Anton Tkachuk
Institute for Structural Mechanics
University of Stuttgart
Stuttgart, Germany
Institute for Structural Mechanics
University of Stuttgart
Stuttgart, Germany
2nd Author
Martina Matzen
Bornscheuer Drexler Eisele GmbH
Stuttgart, Germany
Bornscheuer Drexler Eisele GmbH
Stuttgart, Germany
3rd Author
Radek Kolman
Department D 4 - Impact and Waves in Solids
Institute of Thermomechanics, Czech Academy of Sciences
Prague, Czech Republic
Department D 4 - Impact and Waves in Solids
Institute of Thermomechanics, Czech Academy of Sciences
Prague, Czech Republic
4th Author
Manfred Bischoff
Institute for Structural Mechanics
University of Stuttgart
Stuttgart, Germany
Institute for Structural Mechanics
University of Stuttgart
Stuttgart, Germany
Micro Abstract:
Usage of standard mass matrices together with implicit time integration leads to temporal oscillations of contact forces and losses/gains of energy at each contact event. Redistribution of the mass from nodes that are potentially coming into contact and removing the term corresponding to contact forces from the predictor of the Newmark method alleviates both problems. In this contribution a mass redistribution for solid isogeometric FE’s is presented and results of numerical tests are discussed.