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

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

JC - Computer hardware and software

OECD FORD branch

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Project

<a href="/en/project/GAP101%2F12%2F2315" target="_blank" >GAP101/12/2315: Modelling of acoustic wave propagation in strongly heterogeneous media; multi-scale numerical and analytical approaches</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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