LaSt

Load-optimized fiber paths on curved structures using the example of a design space-compliant and aerodynamic type-V hydrogen pressure vessel and an engine ring structure with a validation strategy accompanying the development process

Highly load-bearing lightweight structures made of fiber-reinforced composites (FRP) are of particular importance for efficient and sustainable aviation. In their production, the stress-appropriate placement of the reinforcing fibres in the component is an essential condition for achieving high mechanical properties. Tailored fiber placement (TFP) for largely flat variable-axial fiber placement and the fiber winding (FW) process for fiber placement on a shaping winding core have become established for this purpose.

Illustration: elongated shape, tapered with labelling — Example of an aerodynamic hydrogen pressure vessel and possible TFP reinforcements.

With the aim of further increasing component performance, the LaSt project combines the TFP and FW processes for the development of novel FRP aerospace structures with curved surfaces. Using the example of a type V high-pressure hydrogen tank and an engine ring structure, new technology-oriented methods for design, layout, manufacture and validation are being developed in a combined virtual-physical approach based on the aviation system-specific requirements. In addition to the structural requirements, the restrictions and technological possibilities with a large number of parameters for TFP and FW must be taken into account. This will be accompanied by the development of a collaborative research data management system (RDM) with the project partner LWM.

Illustration of an overview — Development of a complex test specimen with load path-adapted layer structure.

Period

01.07.2022–30.06.2025

Project partners

Associated partner

Funding

Federal Ministry for Economic Affairs and Climate Action (BMWK): Federal Aviation Research Programme Lu-Fo VI‑2, Funding line "KMU"
Funding code: 20M2118F