Numerical Evaluation of Single-lap Adhesive Joints under Different Geometries and Adhesive Types

Authors

  • T. A. B. Fernandes Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072, Porto, Portugal.
  • R. D. S. G. Campilho Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072, Porto, Portugal and INEGI, Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

DOI:

https://doi.org/10.9734/bpi/taier/v3/8172F

Keywords:

Epoxy, epoxides, polyurethane, finite element analysis, fracture mechanics, aluminium and alloys

Abstract

Adhesives can be strong and brittle (e.g., Araldite® AV138) or less strong and ductile (e.g., Araldite® 2015). High strength and ductility are combined in a new family of polyurethane adhesives (like Sikaforce® 7888). In this study, the performance of the three adhesives listed above was evaluated in single-lap joints with varied overlap lengths (LO). The experimental work is complemented by a rigorous numerical study using Finite Elements, which is based on Cohesive Zone Models (CZM). This procedure enabled to check the performance of this predictive technique when applied to bonded joints. Furthermore, it was possible to determine which adhesive family is most suited for each joint geometry. CZM was shown to be highly accurate, with the exception of mainly ductile adhesives, which may be avoided by using a different cohesive law.

Published

2022-10-12

How to Cite

T. A. B. Fernandes, & R. D. S. G. Campilho. (2022). Numerical Evaluation of Single-lap Adhesive Joints under Different Geometries and Adhesive Types. Techniques and Innovation in Engineering Research Vol. 3, 12–21. https://doi.org/10.9734/bpi/taier/v3/8172F

Issue

Techniques and Innovation in Engineering Research Vol. 3

Section

Chapters