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rovings

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Published: 01 October 2012
Fig. 8.27 Glass-fiber roving. Source: Ref 8.1 More
Image
Published: 01 September 2011
Fig. 3.9 Roving placement, adjacent to the polar periphery of a pressure vessel (top view) More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860019
EISBN: 978-1-62708-338-6
...Abstract Abstract This chapter outlines a methodology for the design of cylindrical pressure vessels, with emphasis on the establishment of winding patterns and the interaction between the real fiber bed geometry (finite roving dimensions) and the theoretical one. To highlight the materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860035
EISBN: 978-1-62708-338-6
... of programming various geometries using advanced software tools and discusses how various materials, such as rovings, tow-preg, prepreg tape, and woven materials, affect winding program generation. computer numerical controlled winding machines computer-aided manufacturing filament winding prepreg tape...
Image
Published: 01 September 2011
Fig. 3.3 Equilibrium of forces and geometry for a membrane shell element with a roving under an angle α More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860007
EISBN: 978-1-62708-338-6
... cutting the rovings at the conclusion of the winding process, and manually unloading the wet-wound mandrels into the oven, and so on. Finally, there has been a revolution in updating the filament winding process. This includes fully automated winding facilities where the mandrels are loaded/unloaded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
.... Strand —Another term associated with glass fibers that refers to a bundle or group of untwisted filaments. Continuous strand rovings provide good overall processing characteristics through fast wet-out (penetration of resin into the strand), even tension, and abrasion resistance during processing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
...-absorbing properties of aramid fibers make them useful for ballistics, tires, ropes, cables, asbestos replacement, and protective apparel. Because aramid yarns and rovings are relatively flexible and nonbrittle, they can be processed in most conventional textile operations, such as twisting, weaving...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.9781627083386
EISBN: 978-1-62708-338-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
... be obtained by combining CSM with continuous fiber woven roving, as shown in Table 14.6 . In this table, CSM properties are compared with those of roving woven combi, which is a combination of CSM and woven cloth; a biaxial 0°/90° woven cloth; and a unidirectional woven cloth that has a high percentage...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... Vinyl ester and polyester High-temperature—polyimide (a) Low-moderate temperature—epoxy Toughness—toughened epoxy Composite material forms Cost (material and labor), process compatibility, fiber volume control, material handling, fiber wet-out, material scrap Base form—neat resin/Rovings Prepreg...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860065
EISBN: 978-1-62708-338-6
...) winder Creels A creel is a device for holding the required number of roving balls or supply packages in a desired position for unwinding onto the mandrel when filament winding. There are several types: stationary and no twist, rotating, braking, and combinations thereof. Stationary...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
... Spray-Up Spray-up is a low- to medium-volume, open-mold method similar to hand lay-up in its suitability for simple medium to large part sizes. However, greater shape complexity is possible with spray-up than with hand lay-up. Continuous-strand glass roving is fed through a combination chopper...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860115
EISBN: 978-1-62708-338-6
... advantage to composites. High-nickel steels, maraging steels, forgings, and welding operations involve considerable expense with long lead times. On the other hand, fiberglass roving and the resin components are inexpensive. Some prepreg roving systems that are required by specifications can be relatively...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860095
EISBN: 978-1-62708-338-6
.... For example, strand tensile strength tests, periodically performed on incoming roving, provide a record of roving quality that may be important if anomalies develop in subsequent processing or product performance. Reference 8.8 also provides a comprehensive list of tests to evaluate reinforcement fibers...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860001
EISBN: 978-1-62708-338-6
...) ( Ref 1.3 ), but there is no comparable database for filament-wound composites that use prepreg tow and wet resin-impregnated tow or roving. The principles of composite analysis and “B”-basis allowables are discussed more extensively in Chapters 8 and 7 , respectively. Structural Analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... with the resin and removing excess resin and entrapped air. The laminate is built up layer by layer until the required thickness is obtained. E-glass is the most prevalent material, but S-2 glass, carbon, or aramid can be used where the improved properties justify the higher costs. Heavy glass woven rovings (500...
Book Chapter

By M. B. Kasen
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860413
EISBN: 978-1-62708-348-5
... monofilaments are sometimes used to reinforce structures, such as pressure vessels, but more frequently the reinforcement is in the form of yarn (a twisted bundle of filaments) or roving (a parallel bundle of filaments). Roving is used in unidirectional prepreg tape, whereas yarn is used in the weaving...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060183
EISBN: 978-1-62708-355-3
... and graphite yarns, strands, rovings, and tows by the tensile loading to failure of the resin-impregnated fiber forms. This technique loses accuracy as the filament count increases. Strain and Young’s modulus are measured by an extensometer. The purpose of using impregnating resin is to provide the fiber...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780314
EISBN: 978-1-62708-281-5
... grade of PC ( Ref 22 ), while Fig. 6 is previously unpublished data on the flexural creep of a composite material. The constituents of the composite are an aromatic-amine-cured epoxy resin and uniaxial 67 wt% glass roving reinforcement. In the creep tests, the reinforcement was parallel to the long...