Where do stress rupture cracks usually appear on turbine blades?
- Across the blade root, parallel to the fir tree.
- Across the leading or trailing edge at a right angle to the edge.
- Along the leading edge, parallel to the edge.
Explanation from PART66Online
Stress-rupture cracks from sustained high temperature and centrifugal load typically appear on a turbine blade as fine cracks running across the leading or trailing edge, at right angles to that edge. Recognising this characteristic orientation distinguishes genuine stress-rupture damage from surface marks and helps reject blades before failure progresses.
V
vale asked · 22 Jun 2021
The first 2 answers aren't saying the same thing?
Community Comments (1)
J
jan.grindheim
12 Jul 2021
No, the blade root is the inner part of the blade where it connects to the "center".
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