Computation of critical loads and buckling modes using hybrid-mixed stress finite element models

被引：3

作者：

Arruda, P. F. T. ^{[1
]}

Arruda, M. R. T. ^{[1
]}

Santos Castro, L. M. ^{[1
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, Dept Engn Civil Arquitetura & Georrecursos, CEris,ICIST, P-1049001 Lisbon, Portugal

来源：

COMPUTERS & STRUCTURES | 2015年 / 154卷

关键词：

Linear stability analysis; Hybrid-mixed formulation; Stress model; Legendre polynomials; Beams; Reissner-Mindlin plates; IMPLEMENTATION;

D O I：

10.1016/j.compstruc.2015.02.012

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This work presents a hybrid mixed stress finite element model for the linear stability analysis of frame structures and Reissner-Mindlin plate bending problems. This model approximates the stress and displacement fields in the domain and the displacement field on the static boundary. Legendre polynomials are used to define all approximation bases, in order to compute analytical solutions for all structural operators. It enables also the implementation of highly efficient p-refinement procedures. A material linear behaviour is assumed and to validate the model and to illustrate its potential, numerical tests are presented and compared with analytical and numerical solutions. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：72 / 90

页数：19

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