Journal
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
Volume 54, Issue 12, Pages 1775-1788Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/nme.487
Keywords
non-linear beam elements; finite rotations; constraints
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This paper describes a new beam finite element formulation based upon the geometrically exact beam theory. In contrast to many previously proposed beam finite clement formulations the present discretization approach retains the frame-indifference (or objectivity) of the underlying beam theory. The space interpolation of rotational degrees-of-freedom is circumvented by the introduction of a reparameterization of the weak form corresponding to the equations of motion of the geometrically exact beam theory. Copyright (C) 2002 John Wiley Sons, Ltd.
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