A damage model for the simulation of delamination in advanced composites under variable-mode loading

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

Autores

A. Turon (Autor) Outra; P. P. Camanho (Autor) FEUP; J. Costa (Autor) Outra; C. G. Dávila, (Autor) Outra

Revista

Título: Mechanics of Materials

Vol. 38 Nº 11

Páginas: 1072-1089

ISSN: 0167-6636

Editora: Elsevier

Indexação

ISI Web of Knowledge - 605 Citações

ISI Web of Science

Scopus - 819 Citações

COMPENDEX

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de materiais

Outras Informações

ID Authenticus: P-004-GDT

DOI: 10.1016/j.mechmat.2005.10.003

Abstract (EN): A thermodynamically consistent damage model is proposed for the simulation of progressive delamination in composite materials under variable-mode ratio. The model is formulated in the context of Damage Mechanics. A novel constitutive equation is developed to model the initiation and propagation of delamination. A delamination initiation criterion is proposed to assure that the formulation can account for changes in the loading mode in a thermodynamically consistent way. The formulation accounts for crack closure effects to avoid interfacial penetration of two adjacent layers after complete decohesion. The model is implemented in a finite element formulation, and the numerical predictions are compared with experimental results obtained in both composite test specimens and structural components.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18