Failure Analysis of Gas Turbine Blades - IJME
Failure Analysis of Gas Turbine Blades - IJME
Failure Analysis of Gas Turbine Blades - IJME
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twins [35]. In this study, many annealing twins (Figure 13) were observed at different<br />
regions.<br />
Figure 11: Several Intergranular Cracks on Transverse Section <strong>of</strong> the Blade Surface<br />
Figure 12: Several Macrocracks on Grain Boundaries Due to Creep Mechanism<br />
Mechanical <strong>Analysis</strong><br />
A steady state gas flow analysis was carried out by means <strong>of</strong> Advanced CFD, which is a<br />
section <strong>of</strong> the ANSYS Workbench 11.0 s<strong>of</strong>tware; then, by mapping these results on the<br />
simulation section, the stress analysis was carried out. Since the rotor and stator <strong>of</strong> this<br />
turbine had 83 and 76 blades, respectively, a complete modeling solution took a long time, so<br />
we modeled two blades <strong>of</strong> rotor and stator with consideration <strong>of</strong> correct boundary conditions.<br />
Proceedings <strong>of</strong> The 2008 IAJC-<strong>IJME</strong> International Conference<br />
ISBN 978-1-60643-379-9
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