Limit analysis and its penalizations

0482507 - ÚGN 2018 ES eng C - Conference Paper (international conference)
Sysala, Stanislav
Limit analysis and its penalizations.
Proceedings of the XIV International Conference on Computational Plasticity. Fundamentals and Application COMPLAS 2017. Barcelona: International Center for Numerical Methods in Engineering (CIMNE), 2017 - (Oñate, E.; Owen, D.; Peric, D.; Chiumenti, M.), s. 1-10. ISBN 978-84-946909-6-9.
[COMPLAS 2017 - Fundamentals and Application - International Conference on Computational Plasticity /14./. Barcelona (ES), 05.09.2017-07.09.2017]
R&D Projects: GA MŠMT LQ1602
Institutional support: RVO:68145535
Keywords : perfect plasticity * limit analysis * truncation method * indirect incremental method
OECD category: Applied mathematics
http://upcommons.upc.edu/bitstream/handle/2117/111299/COMPLAS2017%20-%20Barbu%20et%20al.pdf?sequence=1&isAllowed=y

The contribution is focused on solution of the kinematic limit analysis problem
within associative perfect plasticity. It is a constrained minimization problem describing
a collapse state of an investigated body. Two di erent penalization methods are presented
and interpreted as the truncation method and the indirect incremental method, respec-
tively. It is shown that both methods are meaningful even within the continuous setting
of the problem. Convergence with respect to penalty and discretization parameters is
discussed. The indirect incremental method can be simply implemented within current
elastoplastic codes.
Permanent Link: http://hdl.handle.net/11104/0277933