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Bipenalty explicit finite element algorithm for the solution of contact-impact problems
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SYSNO ASEP 0549298 Document Type A - Abstract R&D Document Type O - Ostatní Title Bipenalty explicit finite element algorithm for the solution of contact-impact problems Author(s) Gabriel, Dušan (UT-L) RID, ORCID
Kopačka, Ján (UT-L) RID, ORCID
Kolman, Radek (UT-L) RID
Plešek, Jiří (UT-L) RID, ORCID, SAINumber of authors 4 Source Title ICTAM 2020+1. - Milano, 2021
S. 2307-2308Number of pages 2 s. Publication form Online - E Action International Congress of Theoretical and Applied Mechanics /25./ Event date 22.08.2021 - 27.08.2021 VEvent location Milano Country IT - Italy Event type WRD Language eng - English Country IT - Italy Keywords contact-impact ; bipenalty method ; FEM Subject RIV JR - Other Machinery OECD category Applied mechanics R&D Projects EF15_003/0000493 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA19-04956S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 Annotation 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 formulation
for 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.Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2022
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