Asynchronous time integration while achieving zero interface energy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21260%2F23%3A00371036" target="_blank" >RIV/68407700:21260/23:00371036 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14311/APP.2023.42.0006" target="_blank" >https://doi.org/10.14311/APP.2023.42.0006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2023.42.0006" target="_blank" >10.14311/APP.2023.42.0006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Asynchronous time integration while achieving zero interface energy

Popis výsledku v původním jazyce

This contribution deals with an asynchronous direct time integration of the finite-element model. The proposed method is applied to the phenomenon of wave propagation through an elastic linear continuum. The numerical model is partitioned into individual subdomains using the domain decomposition method by means of localized Lagrange multipliers. For each subdomain, different time discretizations are used. No restrictions for relation between subdomain’s time steps are imposed. The coupling of the subdomains is forced by an acceleration continuity condition. Additionally, we use the a posteriori technique to also provide the displacement and velocity continuity at the interfaces, and hence we obtain exact continuity of all three kinematic fields. The proposed method is experimentally validated using the modified SHPB (split Hopkinson pressure bar) setup.

Název v anglickém jazyce

Asynchronous time integration while achieving zero interface energy

Popis výsledku anglicky

This contribution deals with an asynchronous direct time integration of the finite-element model. The proposed method is applied to the phenomenon of wave propagation through an elastic linear continuum. The numerical model is partitioned into individual subdomains using the domain decomposition method by means of localized Lagrange multipliers. For each subdomain, different time discretizations are used. No restrictions for relation between subdomain’s time steps are imposed. The coupling of the subdomains is forced by an acceleration continuity condition. Additionally, we use the a posteriori technique to also provide the displacement and velocity continuity at the interfaces, and hence we obtain exact continuity of all three kinematic fields. The proposed method is experimentally validated using the modified SHPB (split Hopkinson pressure bar) setup.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Vol. 42 (2023): 18th Youth Symposium on Experimental Solid Mechanics

ISBN

978-80-01-07237-0

ISSN

2336-5382

e-ISSN

2336-5382

Počet stran výsledku

6

Strana od-do

6-11

Název nakladatele

České vysoké učení technické v Praze

Místo vydání

Praha

Místo konání akce

Telč

Datum konání akce

11. 6. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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