Failure investigation of 6th stage compressor rotor blade of an aeroengine

Suresh Kumar, M and Sujata, M and Madan, M and Venkataswamy, MA and Bhaumik, SK (2006) Failure investigation of 6th stage compressor rotor blade of an aeroengine. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

The blade in question has failed by fatigue. Examination revealed two fatigue crack origins, one at the edge of the blade root and the other on the bottom surface of the platform. The premature fatigue crack initiation appears to be due to one or more of the following reasons: (a) stress raisers arising from rough filing marks, (b) localized damages on the bottom surface of the blade root platform and (c) non-uniform (banded) microstructure

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aeroengine; compressor rotor blades; fatigue
Subjects: 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: 20 Jul 2011 10:20
Last Modified: 20 Jul 2011 10:20
URI: http://nal-ir.nal.res.in/id/eprint/9492

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