Characterization of a polyurethane adhesive and comparative calibration of different material models in LS-DYNA

Abstract

A rubber-like polyurethane adhesive was experimentally characterized and parametrized for use of different material models in LS-Dyna. Due to the characteristically large elastic deformations of the material and adhesive layer thicknesses of several mm, established modelling strategies for the simulation of structural adhesive bonding in automotive applications have to be carefully evaluated and necessary adaptations or alternative modelling possibilities have to be considered