The Chair of Polymer-based Lightweight Construction at BTU Cottbus - Senftenberg is responsible for the following core tasks within the project:

• Selection and characterisation of the starting materials (FRP, hybrid FRP/M multilayer composites, metals)
• Basic tests for the production of FRP and hybrid FRP/M multilayer composites with varying process parameters for the targeted adjustment of residual stresses
• Material mechanical characterisation of orthotropic UD single layers and anisotropic multilayer composites
• Analytical and numerical description of the structural and failure behaviour of hybrid FRP/M multilayer composites and determination of residual stresses under the influence of temperature and media
• Experimental determination of the induced residual stresses using indirect measurement methods
• Design and production studies on low residual stress hybrid FRP/M multilayer composites using elastic buffer layers and specifically adapted layer structures

The Chair of Joining and Welding Technology at BTU Cottbus - Senftenberg is responsible for the following core tasks within the project:

• Production of mixed joints using the semi-tubular self-pierce riveting process and the flow-hole-forming direct screwing process without pre-hole operation
• Bonding process combinations
• Production and characterisation of single-cut metal-FRP/M and CFRP-FRP/M overlap joints
• Identification of process windows for joint production
• Investigations into the influence of the joint on the mechanical-technological properties
• Qualification and iterative optimisation of the joining technology and parameters as well as quantification of the joint properties