Failure analysis of canopy locking handle of an aircraft

Venkataswamy, MA and Parameswara, MA and Sujata, M and Bhaumik, SK (2004) Failure analysis of canopy locking handle of an aircraft. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

Fractographic analysis indicated that the canopy locking handle had failed by fatigue. The most probable reason for fatigue crack initiation appears to be the presence of sharp edges at the eye-end. A fatigue crack was found to have initiated and propagated to a critical length in one of the eye-ends. When the pilot operated this handle for unlocking the canopy, this particular eye-end had fractured first leading to overload failure of the other eye-end. In general, the quality of casting was found poor. A detailed analysis with recommendations is presented in this report.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aircraft;canopy locking handle;fatigue;stress concentrators
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
Depositing User: Mrs Manoranjitha M D
Date Deposited: 25 Jul 2011 10:42
Last Modified: 25 Jul 2011 10:42
URI: http://nal-ir.nal.res.in/id/eprint/9566

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