Comparison of fracture properties of two wood species through cohesive crack simulations

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Dourado, N (Autor) Outra; Morel, S (Autor) Outra; de Moura, MFSF (Autor) FEUP; Valentin, G (Autor) Outra; Morais, J (Autor) Outra

Revista

Título: Composites Part A: Applied Science and Manufacturing

Vol. 39

Páginas: 415-427

ISSN: 1359-835X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 66 Citações

Scopus - 82 Citações

Classificação Científica

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

Outras Informações

ID Authenticus: P-004-2VS

DOI: 10.1016/j.compositesa.2007.08.025

Abstract (EN): In the present work fracture (Mode 1) was induced through three point-bending tests in two wood species used in timber construction: Maritime pine (Pinus pinaster Ait.) and Norway spruce (Picea abies L.). Load-displacement curves were experimentally determined and corresponding Resistance-curves (R-curves) obtained using an equivalent linear elastic approach. An inverse method is presented to identify cohesive crack properties of a cohesive crack bilinear model used to simulate fracture in both wood species, combining experimental data and a developed genetic algorithm. Good agreement between numerical and experimental load-displacement and R-curves was obtained. Conclusions are drawn from finite element simulations regarding the extent of the numerical cohesive zone computed for each studied wood. (c) 2007 Published by Elsevier Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13