Mechanical and Fracture Property Estimation of a Structural Adhesive

Authors

  • J. E. C. Pinto Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua 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, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.

DOI:

https://doi.org/10.9734/bpi/taier/v1/3781A

Keywords:

Structural adhesive, bulk specimens, thick adherend shear test, fracture toughness

Abstract

It is not sufficient to understand the conventional mechanical properties, such as Young’s modulus (E), shear modulus (G), tensile strength (\(\tau\)f) and shear strength (\(\tau\)f) in order to predict crack propagation of an adhesive joint using advanced fracture mechanics-based techniques like cohesive zone models (CZM). Actually, estimating the tensile (GIC) and shear fracture energy (GIIC) is also necessary. The purpose of this work is to carry out the mechanical and fracture property characterization of a new structural two-component epoxy adhesive. With this purpose, four tests which were conducted: tensile testing to bulk specimens, shear testing with thick adherend shear tests (TAST), double-cantilever beam (DCB) and end-notched flexure (ENF). The test results were consistent with the manufacturer's data, and they will make it possible to build bonded structures using this adhesive.

Published

2022-09-06

How to Cite

J. E. C. Pinto, & R. D. S. G. Campilho. (2022). Mechanical and Fracture Property Estimation of a Structural Adhesive. Techniques and Innovation in Engineering Research Vol. 1, 13–24. https://doi.org/10.9734/bpi/taier/v1/3781A

Issue

Techniques and Innovation in Engineering Research Vol. 1

Section

Chapters