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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

recio, dp (Autor) Outra; jorge, rmn (Autor) FEUP; dinis, lms (Autor) Outra

Revista

Título: International Journal for Numerical Methods in Engineering

Vol. 68

Páginas: 1329-1357

ISSN: 0029-5981

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 5 Citações

ISI Web of Science

Scopus - 7 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas > Engenharia

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 29