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woven fabric prepregs

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
... Abstract This chapter discusses the properties and processing characteristics of glass, aramid, carbon, and ultra-high molecular weight polyethylene fibers and related product forms, including woven fabrics, prepreg, and reinforced mats. It also includes a review of fiber terminology as well...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... resin • • • • • … Oriented continuous Unidirectional tape … … • … • • Woven prepreg … … • … • … Woven fabric/neat resin • • … • • … Stitched material/neat resin … • … … … … Prepreg roving … … … • … … Roving/neat resin...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... Abstract This chapter familiarizes readers with the many and varied thermoset composite fabrication processes and the types of applications for which they were developed. It describes wet lay-up, prepreg lay-up, and low-temperature vacuum bag curing prepreg processes, which are best suited...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
.... , “ Measurement and Control of Prepreg Impregnation for Elimination of Porosity in Composite Parts ,” Society of Manufacturing Engineers, Fabricating Composites ’88 , Sept 1988 The advantages of composites are many, including lighter weight, the ability to tailor the lay-up for optimum strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
... available as both unidirectional and fabric prepreg that can be vacuum bag or autoclave molded. Again, E-glass, being fairly low in cost, is the most prevalent product form. For demanding aerospace applications, the higher-cost S-2 glass can be used. As shown in Table 14.8 , S-2 glass provides both higher...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... be successfully consolidated in very short times (minutes if not seconds), while woven powder coated or comingled prepregs require longer times for the resin to flow and impregnate the fibers. Occasionally, a process called film stacking is used, in which alternating layers of thermoplastic film and dry woven...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... with a fugitive binder. The sheets are then cut from the drum and layed up in the desired orientation. For fabric constructions, the tows are usually woven prior to applying the interfacial coatings to minimize damage to the coatings. These prepregging approaches are illustrated in Fig. 21.6 . Near-net-shaped...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860001
EISBN: 978-1-62708-338-6
... process is a low-cost method of manufacturing composite preforms, which have a high fiber volume with a virtually unlimited number of repeatable and accurate fiber angles. As an alternate to woven fabric and braiding, Storage Tek Composites (Louisville, CO; now part of Oracle, Inc.) used dry high-strength...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870063
EISBN: 978-1-62708-314-0
... Assurance and Processing , ASTM STP 797 , 1983 , p 3 – 14 10.1520/STP28535S 7. Carpenter J.F. , Assessment of Composite Starting Materials: Physiochemical Quality Control of Prepregs , AIAA/ASME Symposium on Aircraft Composites: The Emerging Methodology for Structural Assurance , San...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... Debulking , 31st International SAMPE Symposium and Exposition , Apr 1986 • Thorfinnson B. and Bierrinann T.F. , Measurement and Control of Prepreg Impregnation for Elimination of Porosity in Composite Parts , Society of Manufacturing Engineers, Fabricating Composites ’88 , Sept...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
... temperature for six to 12 months. An additional concern with wet lay-up patches is that it may be difficult or impossible to match the strength and stiffness of the original structure if the structure is thin and made from unidirectional tape, since the wet lay-up material will be woven cloth. Both prepreg...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550569
EISBN: 978-1-62708-307-2
... either during fabrication or in service. Even a very small crack can quickly grow to critical size, leading to sudden failure. While reinforcements such as fibers, whiskers, or particles are used to strengthen polymer- and metal-matrix composites, reinforcements in ceramic-matrix composites are used...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... to near-net thickness to aid in tool location. At the same time, the rib plies, made from woven prepreg, are laid up on their individual form blocks and hot debulked. Film adhesive sheet is used between the rib flanges and the lower skin for improved joint strength. It is cut and staged. In addition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860095
EISBN: 978-1-62708-338-6
... designed. There are data for aircraft designers, B-basis allowables, that are provided for unidirectional or woven prepreg laminates which are hand or automatically laid up and cured and compacted in an autoclave, but these data are not generally available for the filament-wound component, even in MIL-HDBK...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860115
EISBN: 978-1-62708-338-6
... Structure Fabrication , 2nd ed. , SAMPE Publishers , Covina, CA , 1998 9.6 “ Test Method for Preparation and Tension Testing of Filament-Wound Pressure Vessels, ” D 2585-68, ASTM , 1990 (withdrawn in 1996 but still used by most pressure vessel companies) 9.7 Gramoll K.C. , Namiki F...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... unidirectional, woven cloth, and helical winding, while the discontinuous reinforcements shown are chopped fibers and random mat. Continuous-fiber composites are often made into laminates by stacking single sheets of continuous fibers in different orientations to obtain the desired strength and stiffness...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.9781627083386
EISBN: 978-1-62708-338-6
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... to other cured composites, honeycomb core, foam core, or metallic pieces. A number of possible adhesive bonding joint configurations are shown in Fig. 8.1 . The ability to make large bonded structures can eliminate a significant amount of the assembly costs. In addition to fabricating large bonded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540319
EISBN: 978-1-62708-309-6
... tape or a multidirectional fabric (e.g., woven, weaved, braided, or knitted). In general, prepreg tapes made of thermoplastic resins have much longer shelf lives. The fiber-reinforced composite laminates also can be used to make sandwiches reinforced with lightweight honeycomb core or corrugated foil...