Failure analysis of No.4 bearing of an aeroengine

Suresh Kumar, M and Madan, M and Venkataswamy, MA and Sujata, M and Bhaumik, SK (2006) Failure analysis of No.4 bearing of an aeroengine. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

A failed bearing (No.4) of aeroengine was sent to the laboratory for investigation. Fractographic study confirmed that the outer ring of the bearing has fractured by sudden overload. No metallurgical and/or mechanical abnormalities were responsible for the crack initiation. Analysis shows that the failure took place during disassembly. The most probable reason for failure appears to be either inappropriate fitment or use of inappropriate tool during dis-assembly.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aeroengine; No.4 bearing; overload failure
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Raghavendra R chandu
Date Deposited: 25 Jul 2011 10:24
Last Modified: 25 Jul 2011 10:24
URI: http://nal-ir.nal.res.in/id/eprint/9597

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