Geometry-dependent MITC method for a 2-node iso-beam element

被引：16

作者：

Lee, Phill-Seung ^{[1
]}

Noh, Hyuk-Chun ^{[2
]}

Choi, Chang-Koon ^{[3
]}

机构：

[1] Samsung Heavy Industries, Seoul 137857, South Korea

[2] Sejong Univ, Seoul 143747, South Korea

[3] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea

来源：

STRUCTURAL ENGINEERING AND MECHANICS | 2008年 / 29卷 / 02期

关键词：

finite elements; iso-beam; MITC method; tying point;

D O I：

10.12989/sem.2008.29.2.203

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, we present an idea of the geometry-dependent MITC method. The simple concept is exemplified to improve a 2-node iso-beam (isoparametric beam) finite element of varying section. We first study the behavior of a standard 2-node iso-beam finite element of prismatic section, which has been widely used with reduced integration (or the equivalent MITC method) in order to avoid shear locking. Based on analytical studies on cantilever beams of varying section, we propose the axial strain correction (ASC) scheme and the geometry-dependent tying (GDT) scheme for the 2-node iso-beam element. We numerically analyze varying section beam problems and present the improved performance by using both ASC and GDT schemes.

引用

页码：203 / 221

页数：19

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