Methodology and Determination of Parameters for Modeling Brittle Adhesive

Abstract

In the numerical simulation of adhesive joints, a significant challenge lies in obtaining reliable experimental data due to the wide variety of adhesives available, each with distinct material properties and different material models. This study focused on testing the methodology for obtaining mechanical parameters using bulk adhesive specimens. The experiments were conducted on a brittle adhesive, specifically Araldit AV 138+HY 998, which was selected as a representative material for structural adhesives. The study also evaluated fracture parameters, including the strain energy release rate, an essential parameter for predicting the fracture behavior of adhesive joints. By focusing on a specific adhesive material, this study aimed to obtain its mechanical parameters and use them in numerical simulations.