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unidirectional tape 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
... as the thickness of each ply in inches. It should be noted that the final cured per ply thickness is strongly dependent on part configuration (especially part thickness) and the user’s processing conditions. Prepreg is usually supplied as narrow unidirectional tape, roving (or towpreg), wide unidirectional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... resins; (3) much higher fiber volumes are obtainable (in this case, 55 to 60 percent versus 30 to 50 percent for a typical wet lay-up); (4) these materials are net resin content prepregs that do not require bleeding of excess resin during cure; and (5) they are available in both unidirectional tape...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... are relatively flexible and nonbrittle, they can be processed in most conventional textile operations, such as twisting, weaving, knitting, carding, and felting. Yarns and rovings are used in the filament winding, prepreg tape, and pultrusion processes. Applications include missile cases, pressure vessels...
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.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 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 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540319
EISBN: 978-1-62708-309-6
.... The prepreg (preimpregnated) tapes can be stored in a refrigerator for future use. In making a composite laminate, the prepreg tapes are stacked together and cured in an autoclave under controlled time, temperature, and pressure. Fig. 8.2 Unidirectional versus quasi-isotropic layups Both...
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 November 2010
DOI: 10.31399/asm.tb.scm.t52870537
EISBN: 978-1-62708-314-0
... shown in Fig. 20.9 , aluminum metal matrix composites (MMCs) reinforced with continuous fibers provide the highest strength and stiffness. Some mechanical properties of several aluminum matrix continuous-fiber MMCs are given in Table 20.2 . In these data, only unidirectional properties are shown...
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 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...
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.t52870001
EISBN: 978-1-62708-314-0
..., and orthotropic materials, the orientation of plies in unidirectional (lamina) and quasi-isotropic (laminate) lay-ups, and the dominant role of fibers in determining strength, stiffness, and other lamina properties. The chapter also compares the engineering attributes of composites with those of metals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550457
EISBN: 978-1-62708-307-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... be prepregged, or textile techniques such as weaving or braiding can be used to form a near-net preform. To form unidirectional prepreg, tows are precoated with the interfacial protection system and filament wound on a drum, which can be prepregged with the ceramic matrix precursor material or held together...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860115
EISBN: 978-1-62708-338-6
..., 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 expensive; however, wet winding with resins...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.9781627083096
EISBN: 978-1-62708-309-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780115
EISBN: 978-1-62708-281-5
....760180106 58. Swarin S.J. and Wims A.M. , A Method for Determining Reaction Kinetics by Differential Scanning Calorimetry , Anal. Calorim. , 1976 , p 155 – 177 10.1007/978-1-4615-6443-0_13 59. Pappalardo L.T. , DSC Evaluation of B-Stage Epoxy-Glass Prepregs...