Effective elastic properties of layered composites considering non-uniform imperfect adhesion

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Humberto Brito Santana (Autor) Outra; Ricardo de Medeiros (Autor) Outra; António Joaquim Mendes Ferreira (Autor) FEUP; Reinaldo Rodríguez Ramos (Autor) Outra; Volnei Tita (Autor) Outra

Revista

Título: Applied Mathematical Modelling

Vol. 59

Páginas: 183-204

ISSN: 0307-904X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 14 Citações

INSPEC

Outras Informações

ID Authenticus: P-00N-SQN

DOI: 10.1016/j.apm.2018.01.009

Abstract (EN): In this study, the effective elastic properties of layered composites are predicted by considering the influence of non-uniform imperfect adhesion. In practical terms, the influence of non-uniform imperfection on the effective properties of layers is evaluated when debonding or delamination occurs between adjacent layers. Thus, the effective properties of two and three-layer composites with imperfect and perfect interfaces are calculated using the finite element method and an analytical technique based on the two-scale asymptotic homogenization method, respectively. In the analyses, it was used a two-layer model with imperfect interface conditions and a three-layer model with perfect conditions to derive analytical expressions of the interlayer properties, which are equivalent to the effect of the imperfection (e.g., debonding). Our numerical results demonstrate that the three-layer model provides an excellent approximation of the two-layer one and it illustrates how the effective properties of the layered composites made from titanium Ti6AI4V and ceramic AD-96 are affected by non-uniform imperfect adhesion.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 22