In the present paper, a three-dimensional shear deformable beam finite element is presented, which is based on the absolute nodal coordinate formulation (ANCF). The orientation of the beam’s cross section is parameterized by means of slope vectors. Both a structural mechanics based formulation of the elastic forces based on Reissner’s nonlinear rod theory, as well as a continuum mechanics based formulation for a St. Venant Kirchhoff material are presented in this paper. The performance of the proposed finite beam element is investigated by the analysis of several static and linearized dynamic problems. A comparison to results provided in the literature, to analytical solutions, and to the solution found by commercial finite element software shows high accuracy and high order of convergence, and therefore the present element has high potential for geometrically nonlinear problems.
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April 2013
Research-Article
Structural and Continuum Mechanics Approaches for a 3D Shear Deformable ANCF Beam Finite Element: Application to Static and Linearized Dynamic Examples
Karin Nachbagauer,
e-mail: karin.nachbagauer@jku.at
Karin Nachbagauer
1
Institute of Technical Mechanics
,Johannes Kepler University Linz
,Altenbergerstraße 69, Linz, 4040
, Austria
e-mail: karin.nachbagauer@jku.at
1Corresponding author.
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Johannes Gerstmayr
Johannes Gerstmayr
e-mail: johannes.gerstmayr@lcm.at
Linz Center of Mechatronics GmbH
,Altenbergerstraße 69, Linz, 4040
, Austria
Search for other works by this author on:
Karin Nachbagauer
Institute of Technical Mechanics
,Johannes Kepler University Linz
,Altenbergerstraße 69, Linz, 4040
, Austria
e-mail: karin.nachbagauer@jku.at
Peter Gruber
Johannes Gerstmayr
e-mail: johannes.gerstmayr@lcm.at
Linz Center of Mechatronics GmbH
,Altenbergerstraße 69, Linz, 4040
, Austria
1Corresponding author.
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received August 29, 2011; final manuscript received April 23, 2012; published online July 23, 2012. Assoc. Editor: Arend L. Schwab.
J. Comput. Nonlinear Dynam. Apr 2013, 8(2): 021004 (7 pages)
Published Online: July 23, 2012
Article history
Received:
August 29, 2011
Revision Received:
April 23, 2012
Citation
Nachbagauer, K., Gruber, P., and Gerstmayr, J. (July 23, 2012). "Structural and Continuum Mechanics Approaches for a 3D Shear Deformable ANCF Beam Finite Element: Application to Static and Linearized Dynamic Examples." ASME. J. Comput. Nonlinear Dynam. April 2013; 8(2): 021004. https://doi.org/10.1115/1.4006787
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