WIT Press


Use Of Local Reanalysis And Quadratic H-hierarchical Functions In Adaptive Boundary Element Models

Price

Free (open access)

Paper DOI

10.2495/BT930321

Volume

3

Pages

16

Published

1993

Size

1,030 kb

Author(s)

A. Charafi, A.C. Neves & L.C. Wrobel

Abstract

Use of local reanalysis and quadratic ^-hierarchical functions in adaptive boundary element models A. Charafi, A.C. Neves, L.C. Wrobel Wessex Institute of Technology, University of Portsmouth, Ashurst Lodge, Ashurst, Southampton, S04 2AA, UK ABSTRACT An adaptive boundary element scheme is developed using the concept of local reanalysis and quadratic h-hierarchical functions for the construction of near op- timal computational models. The use of local reanalysis in the error estimation guarantees the reliability of the modeling process while the use of h-hierarchical elements guarantees the efficiency of the adaptive algorithm. The technique is developed for the elastic analysis of two-dimensional models. A practical exam- ple of a micro structure component shows the rapid convergence of the results with few refinement steps. INTRODUCTION Adaptivity is the availability of a reliable error analysis allowing the discretized model to be selectively refined an

Keywords