Adaptation of biaxial tensile setup for in-situ loading with X-ray scattering

Purpose and goal

This project aimed to investigate the possibility of carrying out characterization of packaging material through flat biaxial deformation in combination with X-ray scattering at MAX IV in Lund and what requirements this puts on the sample holder. On the basis of these requirements, it was examined whether a current test set up for biaxial tensile testing at the Department of Solid Mechanics at Lund University could be used. The overall result is that it will be possible to carry out the measurements at MAX IV, though not with the existing equipment.

Expected results and effects

In order to carry out measurements with external test equipment at facilities such as MAX IV, additional requirements are set on test equipment compared to conventional testing. The study conducted in this project has resulted in a list of specifications on a test set up for measurements with combined biaxial tensile testing and X-ray scattering. In addition to size and weight limitations, requirements include flexibility, e.g. in the form of interchangeable sample holders. The results of this project will form the basis of a new, customized test set up.

Planned approach and implementation

The specifications for a useful test set-up for relevant material testing have been developed through discussions between packaging material experts at Tetra Pak and researchers at Lund University with extensive experience in synchrotron light experiments and the design and manufacture of customized test set ups. Radiation experts at MAX IV have also been consulted during the project.