Effect of adhesive type and thickness on the lap shear strength

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

Autores

Lucas F M da Silva (Autor) FEUP; Rodrigues, TNSS (Autor) Outra; Figueiredo, MAV (Autor) FEUP; de Moura, MFSF (Autor) FEUP; Chousal, JAG (Autor) FEUP

Revista

Título: Journal of Adhesion

Vol. 82

Páginas: 1091-1115

ISSN: 0021-8464

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 324 Citações

Scopus - 366 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Outras Informações

ID Authenticus: P-004-GAJ

DOI: 10.1080/00218460600948511

Abstract (EN): The effect of the adhesive thickness on the bond strength of single-lap adhesive joints is still not perfectly understood. The classical elastic analyses predict that the strength increases with the adhesive thickness, whereas experimental results show the opposite. Various theories have been proposed to explain this discrepancy, but more experimental tests are necessary to understand all the variables. The objective of the present study was to assess the effect of the adhesive thickness on the strength of single-lap joints for different kinds of adhesives. Three different adhesives were selected and tested in bulk. The strain to failure in tension ranged from 1.3% for the most brittle adhesive to 44% for the most ductile adhesive. The adherend selected was a high-strength steel to keep the adherends in the elastic range and simplify the analysis. Three thicknesses were studied for each adhesive: 0.2, 0.5, and 1 mm. A statistical analysis of the experimental results shows that the lap shear strength increases as the bondline gets thinner and the adhesive gets tougher.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 25