Development, assessment and verification of finite element procedures for contact problems

0489668 - ÚT 2019 RIV CZ eng C - Conference Paper (international conference)
Gabriel, Dušan - Kopačka, Ján - Masák, Jan - Plešek, Jiří
Development, assessment and verification of finite element procedures for contact problems.
Engineering mechanics 2018. Book of full texts. Prague: Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2018 - (Fischer, C.; Náprstek, J.), s. 1-4. ISBN 978-80-86246-88-8. ISSN 1805-8248.
[Engineering mechanics 2018 /24./. Svratka (CZ), 14.05.2018-17.05.2018]
R&D Projects: GA MŠMT(CZ) EF15_003/0000493
Institutional support: RVO:61388998
Keywords : FEM * contact algorithm * creep analysis * T-piece of the steam distributor
OECD category: Applied mechanics

A frictionless three-dimensional contact algorithm based on the pre-discretization penalty formulation was proposed. The algorithm proved to be robust, accurate and symmetry preserving—no master/slave surfaces have been introduced. It was implemented in the finite element code PMD (Package for Machine Design) for the solution of complex engineering problems. The capability of the algorithm was demonstrated in creep analysis of T-piece of the steam distributor of the CHEMOPETROL heating plant T200. Material properties were described by the probabilistic exponential model with damage. The purpose of the analysis was to compare the original version and the proposed design modification applied to one of T-pieces of the distributor when the proposed contact algorithm was employed to simulate the interaction between the collar and the pipe.
Permanent Link: http://hdl.handle.net/11104/0286781