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

0549298 - ÚT 2022 RIV IT eng A - Abstrakt
Gabriel, Dušan - Kopačka, Ján - Kolman, Radek - Plešek, Jiří
Bipenalty explicit finite element algorithm for the solution of contact-impact problems.
ICTAM 2020+1. Milano, 2021. s. 2307-2308.
[International Congress of Theoretical and Applied Mechanics /25./. 22.08.2021-27.08.2021, Milano]
Grant CEP: GA MŠMT(CZ) EF15_003/0000493; GA ČR(CZ) GA19-04956S
Institucionální podpora: RVO:61388998
Klíčová slova: contact-impact * bipenalty method * FEM
Obor OECD: Applied mechanics
https://www.ictam2020.org/

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.
Trvalý link: http://hdl.handle.net/11104/0327458