Abstract:
The present invention relates to a torsion-box type airfoil structure. The structure (3) being formed by joined structural composite parts (5, 7, 9, 11) made of fiber reinforced plies (19) stacked onto each other. At least a first (11) and a second structural part (5) being joined by embedding a plurality of elongated reinforcement fiber-like elements (17, 17', 23, 23', 23'', 23''') in said first (11) and second (5) structural parts, wherein said fiber-like elements (17, 17', 23, 23', 23'', 23''') connect said parts to each other.
Abstract:
The present invention regards a structurally integrated curved structure (13, 13', 13'') comprising a curved transition region (15) being defined between a tip section (42) and a root section (11, 21), an upper and lower composite skin (27, 29) comprising an inner surface (45) fixed to a substructure (31) of said transition region (15), the substructure (31) and skins (27, 29) are, during use of the structure (13, 13', 13''), subjected to a bending moment (M), each skin (27, 29) of said transition region (15) comprises elongated reinforcement fiber-like elements. The lower composite skin (29) comprises reinforcing fibersand/or nano tubes(41, 43), which are oriented transverse to the inner surface (45). The invention also regard sa method for producing the structurally integrated curved structure (13, 13', 13'').
Abstract:
The present invention relates to a torsion-box type airfoil structure. The structure (3) being formed by joined structural composite parts (5, 7, 9, 11) made of fiber reinforced plies (19) stacked onto each other. At least a first (11) and a second structural part (5) being joined by embedding a plurality of elongated reinforcement fiber-like elements (17, 17', 23, 23', 23'', 23''') in said first (11) and second (5) structural parts, wherein said fiber-like elements (17, 17', 23, 23', 23'', 23''') connect said parts to each other.