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honeycomb composite structures

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009083
EISBN: 978-1-62708-177-1
... Abstract Honeycomb-cored sandwich panels increase part stiffness at a lower weight than monolithic composite materials. This article illustrates an area of a honeycomb-cored sandwich structure composite cross section that is viewed using transmitted polarized light. This area shows...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002194
EISBN: 978-1-62708-188-7
... Abstract This article presents general guidelines for machining metal matrix composites (MMC) and honeycomb structures. It provides guidelines for machining of specific MMCs, namely, aluminum-boron, aluminum-SiC, aluminum-Al 2 O 3 , and titanium-SiC MMCs. In addition, the article discusses...
Image
Published: 01 December 2004
Fig. 1 Honeycomb sandwich structure composite cross section (∼1 μm ultrathin section) showing differences in the constituents and resin intermingling. Transmitted crossed polarized light with a 530 nm compensator plate. This micrograph and the insets are expanded to 200× magnification. (A–C More
Image
Published: 01 December 2004
Fig. 2 Ultrathin section of an area of a honeycomb sandwich composite structure showing the effects of core movement during manufacturing and the resulting deformation and separation of the prepreg plies. (a) Transmitted crossed polarized light, 20× objective. (b and c) Transmitted polarized More
Image
Published: 01 December 2004
Fig. 3 Ultrathin section of areas of the honeycomb sandwich composite structure where resin was found to span the separated prepreg plies after core movement. (a) Transmitted light, phase contrast, 40× objective. (b and c) Transmitted light, phase contrast, 20× objective More
Image
Published: 01 December 2004
Fig. 5 Micrographs of an unprepared honeycomb sandwich composite structure after climbing drum peel testing showing the adhesive surface after failure and the separated honeycomb core. Dark-field illumination, 65 mm macrophotograph More
Image
Published: 01 December 2004
Fig. 6 (a) Micrograph of a honeycomb sandwich structure composite after climbing drum peel testing showing areas of the core remaining on the aramid fiber composite facesheet. The microcrack pattern of the composite facesheet was enhanced by the use of DYKEM Steel Red dye, which was applied More
Image
Published: 01 December 2004
Fig. 10 Failure of a honeycomb-cored sandwich structure composite with areas of poor fillet formation and inadequate bond strength between the prepreg and film adhesive. Bright-field illumination, 10× objective More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009077
EISBN: 978-1-62708-177-1
... composite structure. In this figure, the 3k-70 plain weave carbon fabric plies are easily observed, as are voids in the structure. Fig. 12 Montage of a chamfer area in a honeycomb composite part made with carbon fabric prepreg skins. Bright-field illumination, 5× objective. A magnified view...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009071
EISBN: 978-1-62708-177-1
... provides an insight into the micro- and macrostructure of fiber-reinforced composites. composite materials composite-toughening methods dispersed-phase toughening fiber-reinforced composites honeycomb composite structures interlayer toughening macrostructure matrix-toughening methods...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003455
EISBN: 978-1-62708-195-5
... Abstract This article discusses the requirements for designing repairable composite structures such as a honeycomb sandwich panel construction and integrally stiffened co-cured composite structures. It reviews the general and specific design guidelines for bolted or riveted repairs...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003375
EISBN: 978-1-62708-195-5
... Structure , Composites , Vol 1 , Engineered Materials Handbook , ASM International , 1986 • Hexcel Cross-Core data sheet , Hexcel Composites • Kindinger J. , “HexWeb Honeycomb Attributes and Properties,” Hexcel Composites , 1999 • Kindinger J. , “Honeycomb Sandwich...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003477
EISBN: 978-1-62708-195-5
... are of a honeycomb sandwich-type construction and are very similar to those fabricated for the 727 carbon-fiber-reinforced epoxy elevator. A 22% weight savings (55 kg, or 116 lb) was achieved on the stabilizer box. Fig. 3 Boeing 727 elevator structural arrangement Fig. 4 Boeing 737 composite...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003489
EISBN: 978-1-62708-195-5
... secondary adhesively bonded joint configurations. It discusses the highly loaded joint considerations of adhesives. The article describes the epoxy adhesives commonly used for the bonding or repair of composite structures. It discusses the surface preparation of composites and metals, and honeycomb...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003457
EISBN: 978-1-62708-195-5
... used under specified operating conditions ( Ref 1 ). The elements of this definition are worthy of further examination for how they apply to composite structures as opposed to system components and line replaceable units, which account for most of the reliability studies. To be judged “satisfactory...
Image
Published: 01 August 2018
Fig. 41 Thermoluminescent coating technique on boron composite aluminum honeycomb flap assembly. (a) Close-up of honeycomb structure. (b) Plot of intensity versus location for bonded joint at locations shown. (c) Plot of intensity versus location for unbonded joint at location shown More
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003037
EISBN: 978-1-62708-200-6
... The information in this article is largely taken from J. Corden, Honeycomb Structure, Composites, Volume 1, Engineered Materials Handbook, ASM International, 1987, p 721–728. References References 1. Bitzer N. , “Honeycomb Sandwich Design and Testing,” PhD thesis, Century University , Los...
Image
Published: 01 December 2004
Fig. 9 Micrograph of fillet separation from a composite facesheet in a honeycomb sandwich structure composite. The sample was mounted in Rhodamine-B-dyed epoxy casting resin. Slightly uncrossed polarized light, 10× objective More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003475
EISBN: 978-1-62708-195-5
... performance requirements and provide a cost-effective honeycomb panel structure for a specific application. Fig. 1 Example of a design trade-off study used to select optimal composite materials and processes Lamination theory is often used to predict laminate properties for use in materials...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009078
EISBN: 978-1-62708-177-1
... direction. Bright-field illumination, 10× objective Voids in Honeycomb Core Composites The lay-up of honeycomb parts often results in voided areas in the composite structure as a result of low pressure in the facesheets and vacuum in the core during manufacturing. Voids are often found...