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Singular mass matrices for isogeometric finite element analysis of dynamic contact
- 1.0480920 - ÚT 2018 DE eng C - Conference Paper (international conference)
Tkachuk, A. - Matzen, M. - Kolman, Radek - Bischoff, M.
Singular mass matrices for isogeometric finite element analysis of dynamic contact.
Computaional Mechanics. Stuttgart: University of Stuttgart, 2017 - (Scheven, M.; Keip, M.; Karajan, N.), s. 164-170
[GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry /7./. Stuttgart (DE), 11.10.2017-13.10.2017]
R&D Projects: GA MŠMT(CZ) EF15_003/0000493
Grant - others:AV ČR(CZ) DAAD-16-12
Program: Bilaterální spolupráce
Source of funding: O - Operational programmes
Keywords : dynamic contact problems * isogeometric analysis * implicit integration
Subject RIV: BI - Acoustics
https://www.gacm2017.uni-stuttgart.de/registration/Upload/ExtendedAbstracts/ExtendedAbstract_0040.pdf
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.
Permanent Link: http://hdl.handle.net/11104/0279408
Number of the records: 1