Electromagnetic Characterization of Composite structures - 2

Purpose and goal

The goal of the project has been to verify the function of a measurement system so that geometric defects and variations in electrical conductivity of structures of flat and single curved composite panels are recreated. This has been achieved with new developed algorithms and methodologies published in international journals. Another goal has been to investigate the interaction between ultrasound and electromagnetic waves. Work on this has mainly been theoretical in the form of literature studies, but verifying measurements have also been carried out and published.

Expected results and effects

A method for characterizing electromagnetic defects in flat and single-curved composite structures has been developed and demonstrated. Advanced theory has been combined with experimental verification to identify the defects. Furthermore, the interaction between ultrasound and electromagnetic waves has been investigated. The research results have been published internationally in form of journal articles. The work is part of two PhD dissertations. The potential for the technology has been shown and cooperation between industry and LTH has been deepened with this project.

Planned approach and implementation

The industry has formulated a technology need and LTH has developed practically useful solutions that meet the needs of industry. The cooperation between industry and LTH has worked well with frequent work meetings. In 2020, however, the pandemic has limited the opportunities for physical meetings. Two of the industry´s project members have been "cross-border" in the form of adjunct professors at LTH during part of the project. They have also served as deputy supervisors to the two PhD students. In addition to theoretical work, experimental activities have also been carried out at LTH.