PSI - Issue 77

Niels Grigat et al. / Procedia Structural Integrity 77 (2026) 365–375

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N. Grigat, B. Vollbrecht et. al. / Structural Integrity Procedia 00 (2026) 000 – 000

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Figure 4.3: Predicted Burst Pressures as a function of Pipe Liner Diameter and number of carbon fibre reinforced plastic reinforcement layers

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Figure 4.4: Predicted Burst Pressures as a function of Pipe Liner Diameter and number of glass fibre reinforced plastic reinforcement layers The simulation outcomes provide valuable insights into the structural response of FRP hydrogen pipelines and form the basis for subsequent experimental validation. The correlation between laminate architecture, pipe geometry, and burst pressure confirms that optimized fibre reinforcement can ensure structural safety under hydrogen transport conditions while minimizing material usage. 5. Conclusion The present study investigates the potential of fibre-reinforced plastic (FRP) composites as an alternative to conventional steel materials for hydrogen transport pipelines. The research demonstrates that FRP systems offer significant advantages in terms of corrosion resistance, low hydrogen permeability, and design flexibility. This is achieved through the combined approach of material characterisation, modelling, and prototype manufacturing. The findings from diffusion barrier and mechanical simulations demonstrate that optimised fibre – matrix combinations and