Failure analysis of compressor first stage rotor blades of an aeroengine
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
Failure analysis of compressor first stage rotor blades of an aeroengine
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| Creator |
Bhaumik, SK
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| Subject |
Aeronautics (General)
Chemistry and Materials (General) |
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| Description |
All the four 1st stage compressor rotor blades belonging to an aeroengine have failed by fatigue. The fatigue cracks have initiated at the edge of the locking plate slot on the convex side of the blade. The tensile stress along the edges of the slots arising due to restriction in the movement of the blades while attaining the stable position appears to be the most probable reason for the fatigue crack initiation. Use of locking plate made of a softer material such as stainless steel of grade S-526 (hardness less than RC 20) is suggested to avoid the recurrence of similar failure. A detailed analysis is presented in this report.
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| Publisher |
National Aerospace Laboratories
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| Date |
2004
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| Type |
Proj.Doc/Technical Report
NonPeerReviewed |
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| Identifier |
Bhaumik, SK (2004) Failure analysis of compressor first stage rotor blades of an aeroengine. Project Report. National Aerospace Laboratories, Bangalore.
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| Relation |
http://nal-ir.nal.res.in/9703/
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