Failure Analysis of parts of an aeroengine

Rangaraju, R and Bhaumik, SK and Bhaskaran, TA and Venkataswamy, MA and Parameswara, MA and Sujata, M (2002) Failure Analysis of parts of an aeroengine. Project Report. National Aerospace Laboratories, Bangalore.

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Four failed components of an aeroengine were sent to the laboratory for determining the modes of fracture. Examination of the failed components revealed that ring sealing expansion and support ring sealing front have fractured at high temperatures under static overload, whereas the adaptor special G1 ‘A’ failed by fatigue due to deficiency in welding. The sub-assembly ring sealing exhaust cone front was found free from any mechanical damages except for some minor rub marks at one location on the knurled region. A thin layer of metal deposition was observed over a sector of this ring.

Item Type: Monograph (Project Report)
Uncontrolled Keywords: Aeroengine;superalloy;overheating;fatigue;weld defect
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Mrs Manoranjitha M D
Date Deposited: 14 Jul 2011 10:58
Last Modified: 27 Aug 2015 05:10

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