Effect of hygrothermal aging on the quasi-static behaviour of CFRP joints varying the overlap length

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

J. J. M.Machado (Autor) FEUP; E. A. S. Marques (Autor) Outra; A. Q. Barbosa (Autor) Outra; Lucas F. M. da Silva (Autor) FEUP

Revista

Título: Composite Structures

Vol. 214

Páginas: 451-462

ISSN: 0263-8223

Editora: Elsevier

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 23 Citações

Outras Informações

ID Authenticus: P-00Q-8T0

DOI: 10.1016/j.compstruct.2019.02.035

Abstract (EN): Adhesively bonded joints with composite substrates are crucial for the manufacture of lightweight structural components for the automotive industry. However, the safety of the vehicles must still be ensured after hygrothermal aging of both composite substrates and adhesive, as adverse conditions such as moisture and temperature will be a constant during a vehicle lifecycle. This work studies the influence of hygrothermal aging and temperature on the quasi-static behaviour of adhesive joints made with unidirectional composite substrates and a crash resistant adhesive using different overlap lengths. A complementary numerical simulation was performed to model both the water uptake processes and the failure process of moisture affected materials. Both the simulation and the experimental data showed increased susceptibility to delamination failure induced by water absorption in the composite and changes in the adhesive properties.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12