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 modular fibre reinforced plastic flange for a structural composite beam comprising: a modular body formed of a plurality of pre-cured elongate elements each formed from a composite material, the elongate elements having rectangular cross-sections and extending longitudinally the length of the b
1. A modular fibre reinforced plastic flange for a structural composite beam comprising: a modular body formed of a plurality of pre-cured elongate elements each formed from a composite material, the elongate elements having rectangular cross-sections and extending longitudinally the length of the beam, the 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 elongate elements are substantially parallel to one another, wherein the dimensions of the modular body are determined by the number and arrangement of the elongate elements in the array; anda pre-cured plastic modular skin member comprising a first skin element and second skin element, the first skin element having a rectangular concave cross-section, the second skin element being sized to join with the first skin element to securely contain the array of elongate elements therein, the first and second skin elements being configurable to accommodate a variable number and arrangement of elongate elements in the array, and the modular skin member extending longitudinally along a substantial portion of the length of a plurality of the elongate elements in the array. 2. A modular flange as claimed in claim 1, wherein the skin member fully surrounds the array of elongate elements. 3. A modular flange as claimed in claim 2, wherein the second skin element is arranged to fit within the first skin element. 4. A modular flange as claimed in claim 1, wherein the skin member comprises a socket to receive, in use, a shear web. 5. A modular flange as claimed in claim 1, wherein at least two of the elongate elements comprise different materials. 6. A modular flange as claimed in claim 1, further comprising at least one reinforcement layer at least partially located within the array of elongate elements. 7. A structural composite beam comprising: a modular flange as claimed in claim 1; anda shear web connected to the skin member of the modular flange. 8. A structural composite beam as claimed in claim 7, wherein the shear web comprises a structural core located between two composite material layers. 9. A method of forming a modular fibre reinforced plastic flange for a structural composite beam comprising: forming a modular body from a plurality of elongate elements each formed from a composite material, the elongate elements having rectangular cross-sections and extending longitudinally the length of the beam, the 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 elongate elements are parallel to one another, wherein the dimensions of the modular body are substantially determined by the number and arrangement of the elongate elements in the array; andconnecting a plastic modular skin member to the body, the skin member comprising a first skin element and second skin element, the first skin element having a rectangular concave cross-section, the second skin element joining with the first skin element to securely contain the array of elongate elements therein, the first and second skin elements being configurable to accommodate a variable number and arrangement of elongate elements in the array, and the modular skin member extending longitudinally along a substantial portion of the length of a plurality of the elongate elements in the array,wherein the elongate elements and skin member of the modular flange are in a cured or semi-cured state and exhibit their final form before forming the body. 10. A method of forming a modular flange as claimed in claim 9, 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. 11. A method of forming a modular flange as claimed in claim 10, wherein the second skin element is arranged to fit within the first skin element; the method further comprising: locating the 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 body. 12. A method of forming a structural composite beam comprising: using the method of claim 9 to form a modular flange; andconnecting at least one shear web to the skin member of the modular flange. 13. A method of forming a modular flange as claimed in claim 9, wherein each component part of the modular flange is made in a continuous production process. 14. A method of forming a structural composite beam as claimed in claim 12, wherein each component part of the structural composite beam is made in a continuous production process. 15. A method as claimed in claim 12, wherein, before forming the body, the at least one shear web of the structural composite beam is in a cured or semi-cured state and exhibits its final form. 16. A kit of parts for forming modular fibre reinforced plastic flanges comprising: a plurality of elongate elements each formed from a composite material, the elongate elements having rectangular cross-sections and extending longitudinally the length of a beam, the elongate elements being suitable for forming a modular body comprising the plurality of elongate elements arranged side-by-side, on top of one another, or side-by-side and on top of one another in an array, wherein the longitudinal axes of the elongate elements are parallel to one another; anda plurality of plastic modular skin members, wherein the plurality of skin members are sized to correspond to predetermined multiples of elongate elements, each skin member comprising a first skin element having a rectangular concave cross-section and a second skin element being sized to join with the first skin element to securely contain the array of elongate elements therein the first and second skin elements being configurable to accommodate a variable number and arrangement of elongate elements in the array, and each modular skin member extending longitudinally along a substantial portion of the length of thereof,wherein the elongate elements and skin members are in a cured or semi-cured state and exhibit their final form.
Baker, Myles L.; Arendt, Cory P., Efficient wind turbine blades, wind turbine blade structures, and associated systems and methods of manufacture, assembly and use.
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