Bipenalty explicit finite element algorithm for the solution of contact-impact problems

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Bipenalty explicit finite element algorithm for the solution of contact-impact problems

Popis výsledku v původním jazyce

In dynamic transient analysis, recent comprehensive studies have shown that using mass penalty together with standard stiffness penalty, the so-called bipenalty technique, preserves the critical time step in conditionally stable time integration schemes. In this paper, the bipenalty approach is applied in the explicit contact-impact algorithm based on the pre-discretization penalty formulationnfor the solution of 2D/3D problems. Several numerical examples are presented including the longitudinal impact of two thick plates, for which analytical solution is available and the Taylor high-velocity impact test with elastic-plastic flow model. In all the cases the superiority of the bipenalty method over the standard stiffness penalty method is demonstrated.

Název v anglickém jazyce

Bipenalty explicit finite element algorithm for the solution of contact-impact problems

Popis výsledku anglicky

In dynamic transient analysis, recent comprehensive studies have shown that using mass penalty together with standard stiffness penalty, the so-called bipenalty technique, preserves the critical time step in conditionally stable time integration schemes. In this paper, the bipenalty approach is applied in the explicit contact-impact algorithm based on the pre-discretization penalty formulationnfor the solution of 2D/3D problems. Several numerical examples are presented including the longitudinal impact of two thick plates, for which analytical solution is available and the Taylor high-velocity impact test with elastic-plastic flow model. In all the cases the superiority of the bipenalty method over the standard stiffness penalty method is demonstrated.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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