Test du picot

Tentative d’application à la caractérisation de l’adhérence entre un acier galvanisé et une colle époxy

Application of the stud test to the characterization of the adhesion between a galvanized steel and an epoxy adhesive

¹ Maître de conférence, Université de OUJDA (Maroc).
² Professeur, Division “Ingénierie des Surfaces”, Université de COMPIEGNE
³ Division Matériaux, Université de Technologie de COMPIEGNE.

Abstract

This study shows that in spite of the drawbacks due to the small size of the studs and to the complex sollicitation of the joint, the adherence test based on the use of a stud and of a microtensile machine allows, due to its simplicity, the realization of a large number of tests with a good reproductibility. The influence of parameters such as the nature of the adhesive, the composition of the substrate and the type of surface treatment on the performance of the adhesive joint can thus be characterised of an interesting manner.