Elastic-Plastic Finite Elament Analysis of Fatigue Crack Closure in an Aluminium-Copper Alloy Part-11:

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) Elastic-Plastic Finite Elament Analysis of Fatigue Crack Closure in an Aluminium-Copper Alloy Part-11:. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    A numerical Investigation of the fatigue cracelkecloesure phenomenon is performed by13; plastic finite element analysis. hanstic-pinstic finite software was written to consider most aspects effecting pla1ticity'indiwe l crack closure. Linear and power-law hardening models are13; considered in the finite element analysis. The paper presents results from the study carried out13; on compact tension (CT) coupons at various crack lengths corresponding to different leading con- ditions. Finally the results of analysis tire compared with the experimental estimate of Intigno13; crack closure levels obtained from layer intorforornetry, scanning electron and transmission electron13; frnctorrnphv presented in part I of this paper on identical specimens.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Fatigue Crack Growth;Crack Closure;Elastic-plastic finite element analysis;Linear and powerlaw strain hardening;Load-cod data.
    Subjects: AERONAUTICS > Aircraft Design, Testing & Performance
    Division/Department: Other, Other, Other, Other, Structural Integrity Division, Other, Other, Structural Integrity Division
    Depositing User: Mrs Manoranjitha M D
    Date Deposited: 15 May 2006
    Last Modified: 24 May 2010 09:41
    URI: http://nal-ir.nal.res.in/id/eprint/1412

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