Experimental and Analytical Estimates of Fatigue13; Crack Closure in an Aluminium-Copper Alloy Part-1: Laser Interferometry and Fatigue Crack Closure

Ashbaugh, NE and Dattaguru, B and Khobeib, M and Nicholas, T and Prakash, Raghu V and Ramamurthy, TS and Seshadri, BR and Sunder, R (1995) Experimental and Analytical Estimates of Fatigue13; Crack Closure in an Aluminium-Copper Alloy Part-1: Laser Interferometry and Fatigue Crack Closure. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    An experimental investigation of fatigue crack closure in compact tension specimens made out of an Al-Cu alloy HE15AST (2014-T6511 equivalent) is presented crack closure stress was estimated by the following experimental techniques: Transmission Electron Fractography scanning electron fractography. In addition, laser inter interformatry was used to obtain load versus near-crack tip displacements both under constant aplitude and random loading. A comparison is made on the estimates obtained from different experimental techniques.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Fatigue Crack Closure;Laser Interferomatry;2014-T6511 Al-Cu, Alloy;Trasnimission electron Fractography;Scanning electron Fractography
    Subjects: AERONAUTICS > Aircraft Propulsion and Power
    Division/Department: Other, Other, Other, Other, Structural Integrity Division, Other, Other, Structural Integrity Division
    Depositing User: Mrs Manoranjitha M D
    Date Deposited: 16 May 2006
    Last Modified: 24 May 2010 09:41
    URI: http://nal-ir.nal.res.in/id/eprint/1363

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