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

被引：12
|
作者：
Yoon, Kyungho [1 ]
Kim, Do-Nyun [1 ,2 ]
Lee, Phill-Seung [3 ]
机构：
[1] Seoul Natl Univ, Dept Mech & Aerosp Engn, Gwanak Ro 1, Seoul 08826, South Korea
[2] Seoul Natl Univ, Inst Adv Machines & Design, Gwanak Ro 1, Seoul 08826, South Korea
[3] Korea Adv Inst Sci & Technol, Dept Mech Engn, 291 Daehak Ro, Daejeon 34141, South Korea
来源：
STRUCTURAL ENGINEERING AND MECHANICS | 2017年 / 62卷 / 01期
基金：
新加坡国家研究基金会;
关键词：
nonlinear analysis; finite element method; beam; composite; torsion; warping; NONUNIFORM TORSION; FINITE-ELEMENT; DEFORMATION; SECTION; BARS;
D O I：
10.12989/sem.2017.62.1.033
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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.
引用
收藏
页码：33 / 42
页数：10
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