MultiTrace

The recovery of carbon fiber tape from a wound structure by means of peelings is an innovative and promising recycling process that could enable high-quality reuse of the tape in a second generation of components. This opens up the prospect of high-quality and sustainable reuse of recycled fiber composite material. However, precise qualification of the material is necessary for optimal use of the recovered tape. The MultiTrace project aimed to realize this qualification by efficiently tracing the changes in tape properties along the life cycle (use and recycling) of the component. The project focused on the example of a wound hydrogen tank. On the one hand, the properties of the tape during use were investigated experimentally by means of ageing and mapped using metamodels. On the other hand, the novel process for recovering the wound composite tape was investigated in more detail experimentally. The process was also modelled in such a way that the simulation model can be used to determine the process parameters that minimize the damage to the tape. The simulation chain thus created should make it possible to qualify the properties of the recovered tape based on monitoring data from component use and data from the recycling process. This digital traceability therefore formed the basis for determining the most relevant application for the recovered tape.