Aerodynamic high-pressure hydrogen CFRP vessels with increased storage energy density: method for the optimization of a manufacturable laminate

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung


Hydrogen storage is one of the major challenges in the transition to hydrogen-based aviation. To store enough hydrogen with minimum storage weight, carbon fiber reinforced polymer (CFRP) high-pressure tanks in underwing pods are a promising option. Aerodynamic requirements, in addition to structural requirements, lead to advantages of an ellipsoid tank geometry over the classical cylindrical geometry. Ellipsoid hydrogen pressure vessels allow for a better utilization of the design space and therefore a higher hydrogen storage volume. During the design phase, the manufacturing process must be considered to allow for geometric adaptation of the CFRP shell while maintaining the ideal isotensoid stress state in the laminate. Friction during fiber placement allows a deviation from the geodesic filament path in the filament winding process to increase the degree of freedom for the geometry of the vessel. Analytical modelling tools are developed to calculate the required friction coefficient for the isotensoid design of a given ellipsoid geometry. The manufacturing and material parameters are then adjusted and experimentally verified to facilitate this isotensoid design. The analytical methodology is validated by finite element modelling of the winding process and physical manufacturing trials.


TitelProceedings of the 2023 International Conference on Composite Materials (ICCM23)
PublikationsstatusVeröffentlicht - 3 Aug. 2023


Titel23rd International Conference on Composite Materials
KurztitelICCM 23
Dauer30 Juli - 4 August 2023
OrtICC Belfast
LandGroßbritannien/Vereinigtes Königreich

Externe IDs

ORCID /0000-0003-1370-064X/work/143958864
ORCID /0000-0001-7887-0805/work/143958955



  • isotensoid, hydrogen storage, friction winding, non-cylindrical, non-geodesic filament winding, conformable pressure vessel