A method for manufacturing a vessel configured for housing a fluid within, said method comprising: a) providing at least two at least partially cured fiber reinforced polymer structures (11, 12) shaped with complementary coupling interfaces (11.1, 12.1) configured for matching with each other, such that an interior volume is defined when the at least partially cured FRP structures (11, 12) are coupled to each other; b) coupling the at least partially cured FRP structures (11, 12) to each other such that the interior volume is defined; c) winding at least one layer of FRP material onto at least a portion of the at least partially cured FRP structures (11, 12) once coupled to each other; and d) curing the assembly resulting from step c). wherein before step a), the method further comprises manufacturing each at least partially cured FRP structure (11, 12) by applying a partial curing cycle: - at a lower temperature compared to a temperature adapted to complete a curing cycle according to which the FRP structures (11, 12) are completely cured, and/or - a shorter duration compared to a duration adapted to complete a curing cycle according to which the FRP structures (11, 12) are completely cured, and characterized in that before applying the partial curing cycle the method comprises: - laying-up an ensemble formed by a honeycomb core and, at least on one side on said honeycomb core, from the inside to the outside of the honeycomb core: a curable adhesive layer and an amorphous thermoplastic film; - laying-up a dry fiber layer over the ensemble; - arranging said dry fiber and ensemble on a one-sided mold and confining it in a gas-tight space by arranging a vacuum sheet over said one-sided mold; and - infusing said dry fiber layer under vacuum with resin. a) providing at least two at least partially cured fiber reinforced polymer structures (11, 12) shaped with complementary coupling interfaces (11.1, 12.1) configured for matching with each other, such that an interior volume is defined when the at least partially cured FRP structures (11, 12) are coupled to each other; b) coupling the at least partially cured FRP structures (11, 12) to each other such that the interior volume is defined; c) winding at least one layer of FRP material onto at least a portion of the at least partially cured FRP structures (11, 12) once coupled to each other; and d) curing the assembly resulting from step c). wherein before step a), the method further comprises manufacturing each at least partially cured FRP structure (11, 12) by applying a partial curing cycle: - at a lower temperature compared to a temperature adapted to complete a curing cycle according to which the FRP structures (11, 12) are completely cured, and/or - a shorter duration compared to a duration adapted to complete a curing cycle according to which the FRP structures (11, 12) are completely cured, and - at a lower temperature compared to a temperature adapted to complete a curing cycle according to which the FRP structures (11, 12) are completely cured, and/or - a shorter duration compared to a duration adapted to complete a curing cycle according to which the FRP structures (11, 12) are completely cured, and characterized in that before applying the partial curing cycle the method comprises: - laying-up an ensemble formed by a honeycomb core and, at least on one side on said honeycomb core, from the inside to the outside of the honeycomb core: a curable adhesive layer and an amorphous thermoplastic film; - laying-up a dry fiber layer over the ensemble; - arranging said dry fiber and ensemble on a one-sided mold and confining it in a gas-tight space by arranging a vacuum sheet over said one-sided mold; and - infusing said dry fiber layer under vacuum with resin. - laying-up an ensemble formed by a honeycomb core and, at least on one side on said honeycomb core, from the inside to the outside of the honeycomb core: a curable adhesive layer and an amorphous thermoplastic film; - laying-up a dry fiber layer over the ensemble; - arranging said dry fiber and ensemble on a one-sided mold and confining it in a gas-tight space by arranging a vacuum sheet over said one-sided mold; and - infusing said dry fiber layer under vacuum with resin.