Measurement of fatigue crack closure through electron microscopy

Sunder, R and Dash, PK (1981) Measurement of fatigue crack closure through electron microscopy. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    A technique is proposed for estimation of crack opening stress during fatigue crack growth. It involves electron fractography of fracture surfaces obtained under specially designed load sequences. The technique was experimentally validated on an Al-Cu alloy. The experimental data bear evidence to fatigue crack closure. They also indicate that fatigue crack closure is uneven across the specimen thickness.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Tress;Fatigue;Crack growth;Load sequences
    Subjects: CHEMISTRY AND MATERIALS > Metals and Metallic Materials
    Division/Department: Materials Science Division, Materials Science Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 03 Nov 2006
    Last Modified: 24 May 2010 09:52

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