Locking and hourglass phenomena in an element-free Galerkin context: the B-bar method with stabilization and an enhanced strain method

• Type: Article in International Scientific Journal
• Date: 2006

Authors

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

Journal

Title: International Journal for Numerical Methods in Engineering

Vol. 68

Pages: 1329-1357

ISSN: 0029-5981

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 5 Citations

ISI Web of Science

Scopus - 7 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering

Other information

Authenticus ID: P-004-FEX

DOI: 10.1002/nme.1741

Abstract (EN): The meshless methods, namely the element-free Galerkin method (EFGM), when they first appeared claimed that volumetric locking and hourglass were avoided. This was not the case and both phenomena occur in the EFGM. In the context of the finite element method (FEM) these phenomena were widely studied. In this work, forms of avoiding the locking phenomenon will be presented; a formulation based on the enhanced strain method will be introduced in the EFGM and the B-bar method will be implemented under the scope of the EFGM. Secondly, to render this method more robust, a stabilization technique will be implemented avoiding hourglass. Several examples are solved to probe the efficiency of these techniques. Copyright (c) 2006 John Wiley & Sons, Ltd.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 29