An isoparametric quadratic thick curved beam element

Prathap, Gangan and Rameshbabu, C (1985) An isoparametric quadratic thick curved beam element. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    A three-noded curved beam element with transverse shear deformation, based on independent isoparametric quadratic interpolations is designed from field-consistency principles. It is shown that a quadratic element that is field-inconsistent in membrane strain effects from quot;membrane lockingquot; Field inconsistency in shear strain does not lead to quot;shear lockingquot; but degrades its performance to exactly that of a field-consistent linear element. Error estimates for locking, wherever possible are derived and confirmed by numerical experiments. The field-consistent element offered here, is the most efficient quadratic curved beam element possible.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Membrane locking;Isoparametric quadratic interpolations;Curved13; beam element
    Subjects: ENGINEERING > Structural Mechanics
    Division/Department: Structures Division, Structures Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 03 Nov 2006
    Last Modified: 24 May 2010 09:52
    URI: http://nal-ir.nal.res.in/id/eprint/3220

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