Influence of mass lumping techniques on contact pressure oscillations in explicit finite element contact-impact algorithm based on isogeometric analysis with NURBS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00430045" target="_blank" >RIV/61388998:_____/14:00430045 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of mass lumping techniques on contact pressure oscillations in explicit finite element contact-impact algorithm based on isogeometric analysis with NURBS

Popis výsledku v původním jazyce

The main difficulty in the contact analysis is a non-smoothness of contacting surfaces. A remedy to the geometric discontinuity may be provided by isogeometric formulation. In this approach, the known geometry is accurately described by the Non-Uniform Rational B-Splines (NURBS) basis functions, which serve at the same time as the element basis functions. The isogeometric NURBS based variant of our symmetry preserving explicit FE contact-impact algorithm, has been proposed. The algorithm was studied bymeans of a numerical example, which involves 2d frictionless dynamic Hertz contact problem of two equally shaped cylinders. The attention was paid to the influence of different lumping techniques on the oscillations of contact force and contact pressure.

Název v anglickém jazyce

Influence of mass lumping techniques on contact pressure oscillations in explicit finite element contact-impact algorithm based on isogeometric analysis with NURBS

Popis výsledku anglicky

The main difficulty in the contact analysis is a non-smoothness of contacting surfaces. A remedy to the geometric discontinuity may be provided by isogeometric formulation. In this approach, the known geometry is accurately described by the Non-Uniform Rational B-Splines (NURBS) basis functions, which serve at the same time as the element basis functions. The isogeometric NURBS based variant of our symmetry preserving explicit FE contact-impact algorithm, has been proposed. The algorithm was studied bymeans of a numerical example, which involves 2d frictionless dynamic Hertz contact problem of two equally shaped cylinders. The attention was paid to the influence of different lumping techniques on the oscillations of contact force and contact pressure.

Druh

O - Ostatní výsledky

CEP obor

JC - Počítačový hardware a software

OECD FORD obor

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Projekt

<a href="/cs/project/GAP101%2F12%2F2315" target="_blank" >GAP101/12/2315: Modelování šíření akustických vln v silně heterogenních prostředích; víceškálové numerické a analytické přístupy</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů