Analysis of failed retainer ring of wheel hub of an aircraft

Suresh Kumar, M and Madan, M and Venkataswamy, MA and Sujata, M and Bhaumik, SK (2006) Analysis of failed retainer ring of wheel hub of an aircraft. Project Report. National Aerospace Laboratories, Bangalore, India.

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Abstract

A fractured retainer ring of wheel hub of an aircraft was sent to the laboratory for identifying the mode of failure. Examination revealed that the retainer ring has failed by fatigue. There was multiple fatigue crack initiation all along the circumference of the ring at the fillet of the change of cross section. After initiation, the fatigue cracks have propagated progressively over 50-60% of the cross section before culminating in overload fracture. The failure was found to be similar to that of the retainer ring that was investigated earlier in this laboratory (refer NAL Report No. MT-FA-1021-08-2006).

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aircraft;Retainer ring;Wheel hub;Fatigue 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: Ms. Alphones Mary
Date Deposited: 29 Jul 2011 11:04
Last Modified: 29 Jul 2011 11:04
URI: http://nal-ir.nal.res.in/id/eprint/9695

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