Damage onset on tow-placed variable stiffness composite laminates

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Akhavan H. (Autor) FEUP; Ribeiro P. (Autor) FEUP; de Moura, M.F.S.F. (Autor) FEUP

Revista

Título: Composite Structures

Vol. 113

Páginas: 419-428

ISSN: 0263-8223

Editora: Elsevier

Indexação

ISI Web of Knowledge - 11 Citações

ISI Web of Science

Scopus - 19 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia mecânica

Outras Informações

ID Authenticus: P-009-GRX

DOI: 10.1016/j.compstruct.2014.03.038

Abstract (EN): Deflection and damage onset of variable stiffness composite laminated (VSCL) rectangular plates with curvilinear fibres, under static and dynamic loads, are investigated. The VSCLs here studied are characterized by the fact that, in each ply, the fibre-orientation angle changes linearly with respect to the horizontal coordinate. A recently developed p-version finite element, which follows third-order shear deformation theory (TSDT), is employed. Large deflections are considered, hence, the analysis is in the geometrically non-linear regime. To predict damage onset, Tsai-Wu criterion and an associated damage onset index, described in this paper as a safety factor, are used. It is shown that geometrical non-linearity affects stresses and the location of damage onset. VSCL and CSCL (constant stiffness composite laminated) plates subjected to static, dynamic, and impact loads, are compared. Crown Copyright

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10