Failure analysis of Support Clamp RH of oil cooler support of an aircraft

Venkataswamy, MA and Sujata, M and Keshab, Barai and Bhaskaran, TA and Bhaumik, SK (2003) Failure analysis of Support Clamp RH of oil cooler support of an aircraft. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

A fractured ‘Support clamp RH’ installed on an aircraft was sent to the laboratory for analysis. Examination showed that the clamp failed by fatigue. Two fatigue cracks were found to have originated at the radius regions of the neck adjacent to the hole. The fatigue appears to be of high cycle – low stress type. The most probable reason for fatigue crack initiation appears to be the assembly stresses resulting from either improper bolt size or improper fixing of the bolt.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aircraft;oil cooler support clamp;APAA;fatigue
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: Mrs Manoranjitha M D
Date Deposited: 05 Aug 2011 14:50
Last Modified: 05 Aug 2011 14:50
URI: http://nal-ir.nal.res.in/id/eprint/9816

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