Engineering Mechanics

International Conference

Proceedings Vol. 10 (2004)


ENGINEERING MECHANICS 2004

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 10 – 13, 2004, Svratka, Czech Republic
;
Editors: Igor Zolotarev and Alena Poživilová

Copyright © 2004 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Prague

ISBN 80-85918-88-9 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Determination of limit pressure of pipeline with defect by energetic criterion
Novotný C., Španiel M.
pages 217 - +5p., full text

There is presented criterion design for determination of limit pressure of pipe with surface corrosion defects. In contrast to sharp damage destruction of pipe with surface defects is in consequence of plastic collapse in macrovolume of pipe wall. There is mentioned existent CTU methodology based on evaluation of plastic region during loading by pressure. Newly suggested criterion is based on analysis of energy balance parameters. Work done to pipe body by pressure load and energy dissipated by plasticity are monitored. This approach is under development.


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