Abstract: A process for fabricating an integrated panel structures and the structures thereby fabricated are provided with first and second stiffeners positioned on a base skin so that the stiffeners intersect at respective intersecting regions. First and second fiber-reinforced resin-composite overlapping layers are provided on the first and second stiffeners so that at least lateral regions thereof are laminated to a corresponding region of the base skin. The base skin and the overlapping layers may be assembled with the first and second stiffeners to form a panel preform which may then be subjected to curing conditions so as to co-cure all previously uncured components and thereby form an integrated composite panel structure with mutually intersecting first and second stiffeners.

Abstract: Processes for fabricating an integrated fiber-reinforced cured resin-composite panel structure include forming a panel preform assembly by (i) positioning pre-cured fiber-reinforced resin-composite tubular stiffeners onto an uncured base skin, and (ii) applying uncured fiber-reinforced resin-composite overlapping layers onto the pre-cured stiffeners so that at least lateral edges of the overlapping layers are laminated to a corresponding region of the base sheet; and thereafter curing the fiber-reinforced resin-composite base skin and overlapping layers to thereby form an integrated composite panel structure.

Abstract: There is disclosed a structural arrangement (10) for an access window (30) to a fuel tank (20) with composite coating (40), this structural arrangement (10) comprising an external lid (11) associated to the access window (30) by fastening means (12), the structural arrangement (10) for an access window (30) to a fuel tank (20) with composite coating (40) further comprising a continuous metal frame (31) disposed on an internal portion of the fuel tank (20), fastened to the composite coating (40) internally and perimetrally circumventing the access window (30), the continuous metal frame (31) being cooperative with the external lid (11) in the conduction of an electric current.

Abstract: A process for fabricating an integrated panel structures and the structures thereby fabricated are provided with first and second stiffeners positioned on a base skin so that the stiffeners intersect at respective intersecting regions. First and second fiber-reinforced resin-composite overlapping layers are provided on the first and second stiffeners so that at least lateral regions thereof are laminated to a corresponding region of the base skin. The base skin and the overlapping layers may be assembled with the first and second stiffeners to form a panel preform which may then be subjected to curing conditions so as to co-cure all previously uncured components and thereby form an integrated composite panel structure with mutually intersecting first and second stiffeners.

Abstract: Processes for fabricating an integrated fiber-reinforced cured resin-composite panel structure include forming a panel preform assembly by (i) positioning pre-cured fiber-reinforced resin-composite tubular stiffeners onto an uncured base skin, and (ii) applying uncured fiber-reinforced resin-composite overlapping layers onto the pre-cured stiffeners so that at least lateral edges of the overlapping layers are laminated to a corresponding region of the base sheet; and thereafter curing the fiber-reinforced resin-composite base skin and overlapping layers to thereby form an integrated composite panel structure.

Abstract: Methods and resulting laminate structures are provided wherein the lay-up of composite materials is accomplished more symmetrically and more continuously as compared to prior techniques to form a composite structure from two composite parts in which their principal laminate directions form a non-singular angle.

Abstract: Methods and resulting laminate structures are provided wherein the lay-up of composite materials is accomplished more symmetrically and more continuously as compared to prior techniques to form a composite structure from two composite parts in which their principal laminate directions form a non-singular angle.