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.

Full text available as:
[img] PDF
Restricted to Archive staff only

Download (2359Kb)

    Abstract

    A three-noded curved beam element with transverse shear deformation, based on indpendent isoparametric quadratic interpolation is designed from field-consistency principles. It is shown that a quadratic element that is field inconsistent in membrane strain suffers from membrane locking quot;Field inconsistency in shear strain does not lead to shear lockingquot; but degrades its performance to exactly that of a field consistent linear element. Error estimates for locking, whenever 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: Finite elements;Field consistency;Strain smoothing;Curved beam;Stress oscillations
    Subjects: ENGINEERING > Structural Mechanics
    Division/Department: Structures Division, Structures Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 30 Oct 2006
    Last Modified: 24 May 2010 09:52
    URI: http://nal-ir.nal.res.in/id/eprint/3212

    Actions (login required)

    View Item