A self‐adaptive fe system based on recursive spatial decomposition and multigrid analysis

30 April 1995

journal article
research article
Published by Wiley in International Journal for Numerical Methods in Engineering

Vol. 38 (8) , 1399-1421
https://doi.org/10.1002/nme.1620380809

Abstract

This paper introduces an automatic self‐adaptive finite element system for 3‐D stress analysis of homogeneous elastic solids described in a Solid Modelling System (SMS). This system reduces the role of the analyst into two basic tasks: defining the problem (i.e. geometry, material properties and boundary conditions) and specifying the desired accuracy in the analysis. The approach followed in this work is based on Recursive Spatial Decomposition (RSD) of solids defined in a SMS. The system includes procedures for meshing, analysis, error estimation, and adaptive remeshing and reanalysis. The various procedures share the same hierarchical data structure built on the RSD.

Keywords

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