Failure analysis of wheel hub of an aircraft

Madan, M and Bhuvana, R and Sujata, M and Venkataswamy, MA and Bhaumik, SK (2009) Failure analysis of wheel hub of an aircraft. Project Report. National Aerospace Laboratories, Bangalore, India.

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Abstract

Frctorgaphic study showed that the wheel hub has failed by static overload. There were no evidences of progressive failure. Microstructural study conducted on the wheel hub material showed inhomogeneous microstructure with deleterious phases such as Fe-Mn-Cu-Al-Si precipitates segregated/clustered in script-like morphology. This microstructural abnormality was found to be predominant in the primary fracture zone. The unsatisfactory hot working of the cast ingot is believed to have resulted in such microstructure. Analysis suggests that the inferior microstructure in the hub material was the most probable reason for the failure. A detailed analysis of the findings and the failure is presented in this report.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aircraft;Wheel hub;Overload failure;Abnormal microstructure
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: 18 Jul 2011 11:58
Last Modified: 18 Jul 2011 11:58
URI: http://nal-ir.nal.res.in/id/eprint/9405

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