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

页码：33 / 42

页数：10

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