Single Lap Joints with Rounded Adherend Corners: Stress and Strain Analysis

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

Zhao, X (Autor) Outra; Adams, RD (Autor) Outra; da Silva, LFM (Autor) FEUP

Revista

Título: Journal of Adhesion Science and Technology

Vol. 25

Páginas: 819-836

ISSN: 0169-4243

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 40 Citações

Scopus - 59 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Outras Informações

ID Authenticus: P-002-YWF

DOI: 10.1163/016942410x520871

Abstract (EN): One of the major difficulties in designing adhesive lap joints is the stress singularity present at the adherend corners at the ends of the overlap. One way to overcome this problem is to assume that the corners have a certain degree of rounding. The objective of the present study was to better understand the effect of the change in the geometry of the adherend corners on the stress distribution and, therefore, on the joint strength. Various degrees of rounding were studied and two different types of adhesives were used, one very brittle and another which could sustain a large plastic deformation. The study gives a detailed stress and strain distribution around the rounded adherends using the finite element method. The major finding is that the stresses or strains in the adhesive layer of a joint with rounded adherend corners are finite. In real joints, adherends generally have small rounded corners. Consequently, the model with small radius corners may be used to represent real adherends. (C) Koninklijke Brill NV, Leiden, 2011

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18