An isoparametric quadratic thick curved beam element

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

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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: Monograph (Technical Report)
Uncontrolled Keywords: Finite elements;Field consistency;Strain smoothing;Curved beam;Stress oscillations
Subjects: ENGINEERING > Structural Mechanics
Depositing User: M/S ICAST NAL
Date Deposited: 30 Oct 2006
Last Modified: 02 Sep 2015 08:23

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