Frame-indifferent beam finite elements based upon the geometrically exact beam theory

被引:142
作者
Betsch, P [1 ]
Steinmann, P [1 ]
机构
[1] Univ Kaiserslautern, Dept Mech Engn, D-67653 Kaiserslautern, Germany
关键词
non-linear beam elements; finite rotations; constraints;
D O I
10.1002/nme.487
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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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页码:1775 / 1788
页数:14
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