Engineering Mechanics

International Conference

Proceedings Vol. 16 (2010)


ENGINEERING MECHANICS 2010

16th INTERNATIONAL CONFERENCE
May 10 – 13, 2010, Svratka, Czech Republic
;
Editors: Igor Zolotarev

Copyright © 2010 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-26-0 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Simulation of crack propagation in steam turbine blade lock
Růžička J., Jurenka J.
pages 125 - +12p., full text

This paper presents a simulation of 3D curved crack propagation in a steam turbine blade lock. These fatigue cracks are often initiated near a blade root contact zone. Two FEM analyses of the blade root were carried out based on stress intensity factor computation along cracks tips. The first was focused on the evaluation of probably initiation crack position according to the contact zone and its geometrical configuration. The second deals with simulation of crack propagation from the most probable initial configuration under cyclic loading caused by starting and shuting down of turbine.


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Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.


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