“…Wang and Soutis [17] reported a 44% increase in ultimate tensile strength of a Tjoint interleaved with polyester (PE) veils compared to a pristine one, but this method is also limited to resin infusion. A cost-effective manufacturing process is pultrusion, but this requires the in-situ curing of the whole stiffener section and therefore it cannot be used for manufacturing individual fillers for later assembly in a prepreg structure [18].…”