Strong displacement discontinuities and Lagrange multipliers: Finite displacement formulation in the analysis of fracture problems

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

areias, pma (Autor) Outra; José César de Sá (Autor) FEUP; Carlos Alberto Conceição António (Autor) FEUP

Revista

Título: Latin American Journal of Solids and Structures

Vol. 2

Páginas: 77-88

ISSN: 1679-7817

Editora: Argentinean Association of Computational Mechanics

Indexação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-009-MFM

Abstract (EN): A finite displacement formulation of a quadrilateral element containing an embedded displacement discontinuity is presented. Lagrange multipliers are adopted to ensure the crack closure before initiation. Six additional degrees of freedom in each element allow the representation of the various states of the crack. The discretized equilibrium equations are exposed, along with the corresponding exact linearization. Two examples illustrate both the robustness and the accuracy of the algorithms.

Idioma: Inglês

Tipo (Avaliação Docente): Científica