Problematika rázů řešená metodou rozložení oblasti TFETI

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F08%3A00019181" target="_blank" >RIV/61989100:27240/08:00019181 - 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

Impact Problems by TFETI Based Domain Decomposition Method

Popis výsledku v původním jazyce

The TFETI method along with MPRGP and SMALBE algorithms were originally proposed for the solution to steady-state problems. However, removing the prescribed Dirichlet boundary conditions and their replacement by the Lagrange multipliers is also attractive for the solution to dynamic problems. We developed nonlinear dynamic algorithm where we made use of the modules originally intended for solution to the static problems. We show that this new variant of FETI is applicable to solution to impact problems,and that it yields very good results, even with additional geometric and material nonlinearities, while the number of iterations is comparable with the number of iterations for static cases. We present results of two sets of numerical experiments. The first one is concerned with the impact of two 3D blocks and the second one with the impact of two cylinders with parallel axes. In the former set of experiments we consider the geometric nonlinearities, and in the latter one both the geome

Název v anglickém jazyce

Impact Problems by TFETI Based Domain Decomposition Method

Popis výsledku anglicky

The TFETI method along with MPRGP and SMALBE algorithms were originally proposed for the solution to steady-state problems. However, removing the prescribed Dirichlet boundary conditions and their replacement by the Lagrange multipliers is also attractive for the solution to dynamic problems. We developed nonlinear dynamic algorithm where we made use of the modules originally intended for solution to the static problems. We show that this new variant of FETI is applicable to solution to impact problems,and that it yields very good results, even with additional geometric and material nonlinearities, while the number of iterations is comparable with the number of iterations for static cases. We present results of two sets of numerical experiments. The first one is concerned with the impact of two 3D blocks and the second one with the impact of two cylinders with parallel axes. In the former set of experiments we consider the geometric nonlinearities, and in the latter one both the geome

Druh

D - Stať ve sborníku

CEP obor

BA - Obecná matematika

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F08%2F0574" target="_blank" >GA101/08/0574: Řešení velmi náročných kontaktních úloh s dalšími nelinearitami moderními matematickými metodami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

8th World Congress on Computational Mechanics

ISBN

978-84-96736-55-9

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

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Název nakladatele

International Center for numerical methods in Engineering (CIMNE)

Místo vydání

Barcelona

Místo konání akce

Venice, Italy

Datum konání akce

30. 6. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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