Journal of Applied and Computational Mechanics

Effect of Temperature and Moisture on the Impact Behaviour of ‎Adhesive Joints for the Automotive Industry

Document Type : Research Paper

Authors

1 Departamento de Engenharia Mecânica, Faculdade de Engenharia da Universidade do Porto (FEUP), 4200-465 Porto, Portugal‎

2 Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial (INEGI), 4200-465 Porto, Portugal‎

Abstract

This study focuses on evaluating the impact of aluminum adhesive joints as a function of temperature and moisture, in an effort to understand how these conditions affect their mechanical properties and behavior. After preparing the required specimens (using two different adhesives and adherend thicknesses), several tests have been made in order to determine these properties and compare their values to the predictions made using analytical methods. These tests were repeated with several distinct combinations of temperatures and moisture levels so that the effect of these properties can be properly interpreted. It was observed that higher temperatures strongly increase the ductility of the adhesive but mixed with moisture this can degrade them. Moisture can increase the energy absorbed through increased plastic deformation of the adhesive and improve behaviour at low temperatures.

Keywords

Main Subjects

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Journal of Applied and Computational Mechanics
Volume 7, Issue 3
July 2021
Pages 1488-1500