A modular fiber reinforced plastic flange for a structural composite beam which comprises a body formed of a plurality of elongate elements arranged in an array, wherein the dimensions of the body are substantially determined by the number and arrangement of the elongate elements in the array, and a
A modular fiber reinforced plastic flange for a structural composite beam which comprises a body formed of a plurality of elongate elements arranged in an array, wherein the dimensions of the body are substantially determined by the number and arrangement of the elongate elements in the array, and a skin member at least partially surrounding the array. Also, a structural composite beam comprising the modular fiber reinforced plastic flange and a shear web connected to the skin member of the modular flange. A method of making the modular flange and beams, and a kit of parts for making the modular flange are also disclosed.
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1. A structural composite beam comprising: two modular bodies each formed of a plurality of pre-cured elongate elements each formed from a composite material, the plurality of elongate elements extending longitudinally the length of the beam, the plurality of elongate elements being arranged side-by
1. A structural composite beam comprising: two modular bodies each formed of a plurality of pre-cured elongate elements each formed from a composite material, the plurality of elongate elements extending longitudinally the length of the beam, the plurality of elongate elements being arranged side-by-side, on top of one another, or side-by-side and on top of one another in an array such that the longitudinal axes of the plurality of elongate elements are parallel to one another, wherein the dimensions of each modular body are substantially determined by the number and arrangement of the plurality of elongate elements in the array;a first modular skin member and a second modular skin member respectively surrounding the array of each body, each modular skin member being configurable to accommodate a variable number or arrangement, or a variable number and arrangement, of elongate elements in the respective array, and each modular skin member extending longitudinally along a substantial portion of the length of a plurality of elongate elements in the respective array, wherein the first modular skin member comprises sides that extend along opposing edges of the respective bodies, the opposing edges being perpendicular to the length of the plurality of elongate elements, wherein the second modular skin member comprises projections that define a socket, and wherein the sides of the first modular skin member at least partially overlap the projections of the second modular skin member; anda shear web inserted and fixed into the respective socket on each of the two modular bodies to form the complete beam. 2. A structural composite beam as claimed in claim 1, wherein each skin member fully surrounds the array of elongate elements. 3. A structural composite beam as claimed in claim 2, wherein each skin member comprises first and second skin elements, the first skin element having a concave form and the second skin element being arranged to fit within the first skin element. 4. A structural composite beam as claimed in claim 1, further comprising at least one reinforcement layer at least partially located within the array of elongate elements. 5. A structural composite beam as claimed in claim 1, wherein the shear web comprises a structural core located between two composite material layers. 6. A method of manufacturing a structural composite beam comprising: forming two modular bodies each from a plurality of pre-cured elongate elements each formed from a composite material, the plurality of elongate elements extending longitudinally the length of the beam, the plurality of elongate elements being arranged side-by-side, on top of one another, or side-by-side and on top of one another in an array such that the longitudinal axes of the plurality of elongate elements are parallel to one another, wherein the dimensions of each modular body are substantially determined by the number and arrangement of the plurality of elongate elements in the array;surrounding the array of each body with a first modular skin member and a second modular skin member configurable to accommodate a variable number or arrangement, or a variable number and arrangement, of elongate elements in the respective array, and each modular skin member extending longitudinally along a substantial portion of the length of a plurality of elongate elements in the respective array, wherein the first modular skin member comprises sides that extend along opposing edges of the respective bodies, the opposing edges being perpendicular to the length of the plurality of elongate elements, wherein the second modular skin member comprises projections that define a socket, and wherein the sides of the first modular skin member at least partially overlap the projections of the second modular skin member; andforming a shear web and inserting and fixing the shear web into the respective socket on each of the two modular bodies to form the complete beam. 7. A method of forming a structural composite beam as claimed in claim 6, further comprising: selecting a number and arrangement of elongate elements to define the dimensions of the body; andselecting a skin member which is sized to substantially fit the dimensions of the body. 8. A method of forming a structural composite beam as claimed in claim 7, wherein the first skin element comprises a concave form and the second skin element is arranged to fit within the first skin element; the method further comprising: locating the respective body within the first skin element; andlocating the second skin element within the first skin element to form a skin member which fully surrounds the respective body. 9. A method of forming a structural composite beam as claimed in claim 6, wherein each of the elongate elements and skin members is made in a continuous production process. 10. A method of forming a structural composite beam as claimed in claim 6, wherein the modular bodies, the first modular skin members, the second modular skin members, and the shear web of the structural composite beam are made in a continuous production process. 11. A method of forming a structural composite beam as claimed in claim 6, wherein, before forming each body, the respective skin members, and the shear web of the structural composite beam are in a cured or semi-cured state and exhibit their final form. 12. A kit of parts for forming modular fibre reinforced plastic flanges comprising: a plurality of pre-cured elongate elements, each formed from a composite material, suitable for forming two modular bodies each comprising a plurality of elongate elements extending longitudinally the length of the beam, the plurality of elongate elements in each body being arranged in an array side-by-side, on top of one another, or side-by-side and on top of one another, wherein the longitudinal axes of the plurality of elongate elements are parallel to one another, and wherein the dimensions of each respective modular body are substantially determined by the number and arrangement of the plurality of elongate elements in the array;a plurality of first modular skin members and second modular skin members, wherein the plurality of modular skin members are configurable to accommodate a variable number or arrangement, or a variable number and arrangement, of elongate elements in the respective array, and each modular skin member extending longitudinally along a substantial portion of the length of a plurality of elongate elements in the respective array, wherein the first modular skin members each comprise sides that extend along opposing edges of the respective bodies, the opposing edges being perpendicular to the length of the plurality of elongate elements, wherein the second modular skin members each comprise projections that define a socket, and wherein the sides of each first modular skin member at least partially overlap the projections of one of the second modular skin members when assembled; anda shear web to be inserted and fixed into the respective socket on each of the two modular bodies to form the complete beam. 13. A kit of parts as claimed in claim 12, wherein the skin members are in a cured or semi-cured state and exhibit their final form.
Miebach, Thomas; Quek, Shu Ching; Faidi, Waseem Ibrahim; Yerramalli, Chandra Sekher; Baehmann, Peggy Lynn; Fritz, Peter James, Wind turbine rotor blade assembly having an access window and related methods.
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