Analysis of Flexible Bars and Frames with Large Displacements of Nodes By Finite Element Method in the Form of Classical Mixed Method

[摘要] This article is the continuation of the work made bt the authors on the development of the algorithms that implement the finite element method in the form of a classical mixed method for the analysis of geometrically nonlinear bar systems [1-3]. The paper describes an improved algorithm of the formation of the nonlinear governing equations system for flexible plane frames and bars with large displacements of nodes based on the finite element method in a mixed classical form and the use of the procedure of step-by-step loading. An example of the analysis is given.

[发布机构] Institute of Architecture and Civil Engineering, Volgograd State Technical University (IACE of VSTU), 1 Akademicheskaya Street, Volgograd; 400074, Russia^1

[学科分类] 土木及结构工程学

[关键词] Bar systems;Flexible bars;Geometrically nonlinear;Governing equations;Large displacements;Mixed method;Step by step loadings