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Failure analysis of intermediate casing of an aeroengine

IR@NAL: CSIR-National Aerospace Laboratories, Bangalore

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Title Failure analysis of intermediate casing of an aeroengine
Creator Suresh Kumar, M
Madan, M
Venkataswamy, MA
Sujata, M
Parameswara, MA
Bhaumik, SK
Subject Aeronautics (General)
Chemistry and Materials (General)
Description In continuation with the earlier investigation of a particular type of aeroengine build (NAL report No. MT-FA-945-09-2005 and MT-FA-945A-01-2006), intermediate casing was also sent to the laboratory for investigation. Examination revealed a crack along the fillet of the mounting area. Fractographic examination confirmed this crack to be a fatigue crack. This corroborates the earlier findings wherein it was established that high alternating stresses and/or vibration were transmitted to No.3 bearing mounting flange through intermediate casing due to problems elsewhere in the engine.
Publisher National Aerospace Laboratories
Date 2006
Type Proj.Doc/Technical Report
Identifier Suresh Kumar, M and Madan, M and Venkataswamy, MA and Sujata, M and Parameswara, MA and Bhaumik, SK (2006) Failure analysis of intermediate casing of an aeroengine. Project Report. National Aerospace Laboratories, Bangalore.
Relation http://nal-ir.nal.res.in/9994/