Facts

Contact person:
Pär Olsson
Financers:
  • SSF
Responsible at Malmö University:
Pär Olsson
Time frame:
01 April 2018 - 31 March 2020
Faculty/department:

The main objective is to develop and implement a physically well-founded multiscale modelling approach for predicting the strength of polymer-metal interfaces. The suggested approach relies on results from atomistic Monte Carlo and molecular dynamics modelling that will be used to investigate how production process related state variables (e.g. pressure and thermal cycles) affect the atomic arrangements at the interfaces, as well as the interfacial strength and fracture properties.

Such data will be translated into a cohesive  zone model that describes the interfacial fracture properties and can be implemented in a finite element software. To validate the predictability of the cohesive zone model we will conduct experimental peel tests. The modelling target of the project corresponds to interfaces between thin aluminium and polyethylene foils that act as barriers in beverage containers to ensure their integrity and the quality of the content.

The expected outcome is a reliable multiscale modelling approach that can be used to predict the interfacial strength of polymer-metal interfaces and to optimize the manufacturing settings to obtain desired interfacial properties. The project is performed in the form of a part-time affiliation at Tetra Pak.