Some aspects of finite element structural modelling using a link finite element

Abstract

This paper explains the main principles of so-called "link" finite elements (link FE) application in finite element method (FEM) modeling of civil engineering structures. Concept, application field and some numerical aspects of link FE are discussed. The basic approach considers the FEM structural modeling in simplify sense: after FE mesh generation i.e. system topology definition follows modeling the FE stiffness and theoretic boundary/interface conditions. Advanced approach, proposed in this paper, takes into account real boundary and interface conditions and some particular phenomena modeling. Required theoretical considerations, suggestions and recommendations for practical link FE application in FEM modeling are given. However, importance of Computer Aided Structural Analysis (CASA) software choice is emphasized. © 2007 Civil-Comp Press.