Nonlinear torsional analysis of 3D composite beams using the extended St. Venant solution

We present in this paper a finite element formulation for nonlinear torsional analysis of 3D beams with arbitrary composite cross-sections. Since the proposed formulation employs a continuum mechanics based beam element with kinematics enriched by the extended St. Venant solutions, it can precisely account higher order warping effect and its 3D couplings. We propose a numerical procedure to calculate the extended St. Venant equation and the twisting center of an arbitrary composite cross-section simultaneously. The accuracy and efficiency of the proposed formulation are thoroughly investigated through representative numerical examples.
Publisher
TECHNO-PRESS
Issue Date
2017-04
Language
English
Keywords

NONUNIFORM TORSION; FINITE-ELEMENT; DEFORMATION; SECTION; MODEL; BARS; BEM

Citation

STRUCTURAL ENGINEERING AND MECHANICS, v.62, no.1, pp.33 - 42

ISSN
1225-4568
DOI
10.12989/sem.2017.62.1.033
URI
http://hdl.handle.net/10203/225345
Appears in Collection
ME-Journal Papers(저널논문)
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