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Session: Session 4: Manufacturing Simulation
Session starts: Tuesday 14 April, 15:50
Presentation starts: 16:30
Room: Main

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Ivan Komala (Delft University of Technology, Faculty of Aerospace Engineering)
Julien van Campen (Delft University of Technology, Faculty of Aerospace Engineering)
Daniël Peeters (Delft University of Technology, Faculty of Aerospace Engineering)
Morteza Abouhamzeh (Amsterdam University of Applied Sciences, Aviation Academy)
Sebastian Heimbs (TU Braunschweig, Institute of Aircraft Design and Lightweight Structures (IFL) )

Abstract:
In this paper, a stress analysis of a linerless filament‑wound composite pressure vessel (CPV) under cryogenic hydrogen storage conditions, and including the curing‑induced residual stresses is presented. The finite element (FE) model at cylindrical part is first verified against an analytical thin‑shell solution under internal pressure and thermal loading. The full CPV geometry is then analyzed to map fiber and transverse stresses along the axial direction. Two filament-wound designs, [10_4/88_2] and [10_2/45_2/88_2], are compared to evaluate the effect of high‑angle helical layers on stress distribution under cryogenic temperatures. Results show that curing‑induced residual stresses contribute up to 10% of the total stress and significantly influence the risk of early crack initiation in cryogenic CPVs due to the stresses in matrix-dominated direction.