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honeycomb structures

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... honeycomb panels and foam cores along with their respective applications and unique attributes. The chapter also discusses the cocuring process and its use in fabricating unitized structures. adhesive bonding composite processing honeycomb structures integral cocured structures SANDWICH AND...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870351
EISBN: 978-1-62708-314-0
... Abstract This chapter discusses composite testing procedures, including tension, compression, shear, flexure, and fracture toughness testing as well as adhesive shear, peel, and honeycomb flatwise tension testing. It also discusses specimen preparation, environmental conditioning, and data...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550511
EISBN: 978-1-62708-307-2
... parts. Ceramic honeycomb structures are used in heat exchangers ( Fig. 10.3 ) to maximize efficiency. Maximum application temperatures can range from approximately 500 to 1400 °C (900 to 2500 °F). Fig. 10.3 Ceramic honeycomb used in heat exchanger Materials for tribological applications...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... effectively and its use can therefore result in a very long joint in a thick composite laminate. Therefore, it is rarely used as a primary joining technique, although it is frequently used for repairing thin skins in honeycomb structures. Although the stepped-lap joint configuration is difficult to fabricate...
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 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... strength-to-weight ratios. The basic concept of a sandwich panel is that the facings carry the bending loads (tension and compression), while the interior sandwich or core carries the shear loads. Sandwich construction, especially honeycomb core construction, is extremely structurally efficient...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... epoxy resins, curing agents, and filler/modifiers that harden on mixing. Some are cured when heated. Shear strength to 40 MPa (5800 psi), tensile strength to 50 MPa (7200 psi). Applications: aluminum bonding applications and honeycomb panels for aircraft, sheet metal reinforcements for cars, lamination...
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
..., thin (~<.10 in.) X X Highly loaded, thick (~>.10 in.) X … Peeling stresses high X … High reliability required X … Repairing honeycomb structure … X Adherend surfaces Dry X X Wet X … Clean X X Contaminated X … Sealing required X X Disassembly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870333
EISBN: 978-1-62708-314-0
... zoned to lower threshold values than noncritical lower-stressed areas. Carbon/epoxy laminates are usually scanned at around 5 MHz, while honeycomb assemblies require lower frequencies (1 or 2.25 MHz) to penetrate thicker structures. Foam-filled structures require even lower frequencies, with 250 kHz...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
.../epoxy honeycomb, also scored low in damage tolerance and repairability, this structure was the one selected, primarily because of its outstanding stiffness, weight, and fatigue resistance. Although a detailed structural analysis is not required at this point, rough order sizing is needed to obtain...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290165
EISBN: 978-1-62708-306-5
... Major applications Al-Si, eutectic BAISi Preforms, wire, rods, foil, powder, RS foil (a) Aluminum and aluminum alloys, steel to aluminum and aluminum to beryllium Car radiators, heat exchangers, honeycomb aircraft structures, structural parts Cu-X, solid solution BCu Preforms, wire, rods...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870401
EISBN: 978-1-62708-314-0
... amounts of moisture absorption. Finally, if liquid water is present in either a honeycomb assembly or within a laminate, heating it to high temperatures can turn the trapped water into steam, resulting in steam pressure delamination. Fig. 15.1 Potential moisture effects When a polymer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
...-viscosity monomers that are converted during curing into three-dimensional crosslinked structures that are infusible and insoluble. Crosslinking results from chemical reactions that are driven by heat generated either by the chemical reactions themselves (i.e., exothermic heat of reaction) or by externally...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550193
EISBN: 978-1-62708-307-2
... from sheet and foil. For example, beryllium honeycomb structures have been made by brazing formed sheet, as have complex satellite structural components. Beryllium tubing made by extrusion has also been used in satellite components. Space probes such as the Galileo Jupiter explorer have used extruded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290001
EISBN: 978-1-62708-306-5
... spar caps) Bonded joints between rather thin metal sheet and a low-density core material, called honeycomb or sandwich structures ( Fig. 1.8b ). Core materials include paper dipped in a phenolic resin, fiberglass, aluminum alloy foil, Nomex (aramid fiber paper dipped in phenolic resin), graphite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870001
EISBN: 978-1-62708-314-0
... using composites. Another example of a composite application that takes a beating yet keeps on performing is a snowboard, which typically involves the use of a sandwich construction (composite skins with a honeycomb core) for maximum specific stiffness. Fig. 1.33 Sporting goods applications...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
... have melting points higher than those of steels, but maximum useful temperatures for structural applications generally range from 425 to 595 °C (800 to 1100 °F). Titanium has the ability to passivate and thereby exhibit a high degree of immunity to attack by most mineral acids and chlorides. Titanium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280149
EISBN: 978-1-62708-267-9
... schematic in Fig. 9.16 ) of plate and/or sheet was developed as a reduced-cost method for processing of various metals. A combination of superplastic forming and diffusion bonding has been used on some nickel-base superalloys to produce complex structures. Fig. 9.16 Schematic representation of the...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870101
EISBN: 978-1-62708-314-0
... eggcrate support structure can be made from honeycomb laminates or carbon/epoxy tooling board or constructed from carbon/epoxy prefabricated tubes. Alternatives to eggcrate support systems include stiffeners molded to the back side of the tool and tubular support systems. To help protect the edges of the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
... conventional textile operations, such as twisting, weaving, knitting, carding, and felting. Yarns and rovings are used in filament winding, prepreg tape, and pultrusion processes. Applications include missile cases, pressure vessels, sporting goods, cables, and tension members. Aramid paper used in honeycomb...