The linearized three-dimensional beam theory of naturally curved and twisted beams : the strain vectors formulation
Zupan, Dejan (Author), Saje, Miran (Author)

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This paper presents the equations of the linearized geometrically exact three-dimensional beam theory of naturally curved and twisted beams. A new finite-element formulation for the linearized theory is proposed in which the strain vectors are the only unknown functions. The linear form of the consistency condition that the equilibrium and the constitutive internal force and moment vectors are equal, is enforced to be satisfied at chosen points. An arbitrary curved and twisted axis of the beam is taken into account which demands proper consideration of the non-linearity of spatial rotations. The accuracy and the efficiency of the derived numerical algorithm are demonstrated by comparing present numerical results with various analytical and numerical results. (c) 2005 Elsevier B.V. All rights reserved.

Keywords:linear beam theory, naturally curved beam, twisted beam, consistent linearization, strain measure, three-dimensional beam, three-dimensional rotation
Tipology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Number of pages:str. 4557-4578
Numbering:Letn. 195, št. 33-36
ISSN on article:0045-7825
DOI:10.1016/j.cma.2005.10.002 Link is opened in a new window
COBISS.SI-ID:3169889 Link is opened in a new window
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Record is a part of a journal

Title:Computer Methods in Applied Mechanics and Engineering
Shortened title:Comput. methods appl. mech. eng.
COBISS.SI-ID:6695685 This link opens in a new window

Secondary language

Keywords:linearna teorija nosilcev, ukrivljeni nosilci, zviti nosilci, konsistentna linearizacija, deformacijske količine, prostorski nosilci, prostorske rotacije

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