Proceedings Vol. 16 (2010)
ENGINEERING MECHANICS 2010
May 10 – 13, 2010, Svratka, Czech Republic
Copyright © 2010 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 43 - +9p., full text
Paper focuses on possibilities of transient processes modelling at pressure pipe system of a non-nuclear part of a certain power plant and summarizes the results of related numerical studies. Effect of hardening (isotropic, linear kinematic, Chaboche, Johnson-Cook), various descriptions of tensile diagram (bilinear, multilinear, Krupkowsky), and effect of dynamic load are studied. Demand of usage the proper constitutive model of elastoplasticity is highlighted. Various types of yield surfaces as well as evolution of internal variables of presented models of plasticity are described. Finally, the methodology of pipe whip restraints assessment including material and geometric nonlinearities is presented.
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All papers were reviewed by members of the scientific committee.