On the use of element-free Galerkin Method for problems involving incompressibility

• Type: Article in International Scientific Journal
• Date: 2007

Authors

recio, dp (Author) Other; jorge, rmn (Author) FEUP; dinis, lms (Author) Other

Journal

Title: Engineering Analysis with Boundary Elements

Vol. 31

Pages: 103-115

ISSN: 0955-7997

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 4 Citations

ISI Web of Science

Scopus - 4 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering

Other information

Authenticus ID: P-004-BZ1

DOI: 10.1016/j.enganabound.2006.08.007

Abstract (EN): The improvement of the performance of numerical methods, namely in the presence of incompressible deformations, have been, in the recent years, an important issue of discussion. However, incompressible or near incompressible behaviour has been a source of problems for numerical analysis of solid mechanics as the methods tend to present a locking response, or alternatively, spurious modes of deformation. The element-free Galerkin method (EFGM) is one of these methods, which exhibits some problems, namely, the so-called volumetric locking and hourglass. The first one is related with an inability to deform in some conditions. The hourglass is related with the apparition of non-physical eigenvectors. In this publication a new vision based in vector spaces theory is presented which can explain why these problems appear in the EFGM context.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13