Simulation of crack propagation in steam turbine blade lock
Abstract eng: 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.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Prague
Conference Title:
Conference Title:
Engineering Mechanics 2010
Conference Venue:
Svratka (CZ)
Conference Dates:
2010-05-10 / 2010-05-13
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-24, last modified 2014-11-18
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