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honeycomb structures

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Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006457
EISBN: 978-1-62708-190-0
... inspection of adhesive-bonded joints. adherend defects adhesive-bonded joints bonded structures honeycomb sandwich defects metal-to-metal defects neutron radiography nondestructive inspection repair defects ultrasonic inspection visual inspection X-ray radiography ADHESIVE-BONDED JOINTS...
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
... Abstract Honeycomb is a product consisting of very thin sheets attached to form connecting cells. This article briefly explains the construction, core characteristics, properties, and testing methods of the honeycomb structures. It discusses the special processes used to custom fit the shape of...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001317
EISBN: 978-1-62708-170-2
... silica, in powder or particulate form; and structural supports such as the monoliths upon which catalyzed carders are deposited. The article also describes catalyst powder processing techniques for tableting, beading, extrusion, spray drying and honeycombing. active carriers beading catalyst...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003043
EISBN: 978-1-62708-200-6
... product. For example, non-honeycomb structures are in most instances easiest to maintain and repair, but they can cost more to manufacture than individual structures. The simplicity of repair must also be balanced by the expected structural performance. The joining technique used on a particular...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006475
EISBN: 978-1-62708-190-0
... is passing by. Microwave systems of this type have been used to monitor hot rolled steel products (i.e., blooms and billets). Flaw detection in nonmetallics is occasionally performed by means of microwave reflectometry. Delaminations are detectable in nonmetallic honeycomb and laminar structures...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006671
EISBN: 978-1-62708-213-6
... porosity with fine grain size. Phase heterogeneity and orientation may have a significant effect on all properties. For example, the honeycomb monolithic catalytic converter substrate used in automotive applications must have a carefully controlled porosity to achieve optimum catalytic performance, coupled...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006072
EISBN: 978-1-62708-172-6
... alkalinity, reducing it to a pH in the 8 to 9 range. In this range, unprotected steel in the concrete will corrode. At cracks, honeycombed areas, or any location where humid air can penetrate into the concrete, carbonation will occur. The older a concrete bridge structure is, the greater the potential for...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006453
EISBN: 978-1-62708-190-0
...) compared to the surrounding material in the part. This approach is widely used in maintenance inspection of aircraft for trapped water in honeycomb structures. Fig. 3 In the steady-state configuration, the entire part is heated above ambient temperature, returning to equilibrium by thermal convection...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003047
EISBN: 978-1-62708-200-6
... conditions. It then focuses on the characteristics, types, and properties of the five groups of adhesives, such as structural, hot melt, pressure sensitive, water based, ultraviolet, and electron beam cured adhesives. The article also discusses the functions and applications of adhesive modifiers, including...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006464
EISBN: 978-1-62708-190-0
...., thermal blankets are used to heat aircraft control structures). Because the excitation and relaxation occur over an extended period of time, subsurface indications are likely to be blurred by thermal diffusion. Steady-state excitation is widely used for detection of trapped water in honeycomb sandwich...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003046
EISBN: 978-1-62708-200-6
... skins can allow moisture ingression in the underlying honeycomb. Large-part or large-area repair can require replacement of the part or removal for remanufacturing. For damage over a smaller area, operators use prepregs and wet lay-up techniques in bonded, bolted, or flush aerodynamic patching ( Ref 15...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003140
EISBN: 978-1-62708-199-3
.... These drawbacks are significant when working aluminides into product forms that require a large amount of deformation, such as sheet for honeycomb-panel or truss-panel cores in aircraft/aerospace structures. ...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
..., chain configuration, conformation of the base polymers, processing of the base polymers with or without additives; and the response to chemical, physical, and mechanical stresses of base polymers as unfilled, shaped articles or as components of composite structures. It also describes thermal analysis...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003210
EISBN: 978-1-62708-199-3
..., eutectic BAlSi 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 2 Cu-X, solid solution Cu-Zn, peritectic Cu-Sn, peritectic BCu RBCuZn None...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... types of areas can be inspected with a 5 MHz transducer frequency. Honeycomb areas are typically scanned at 1 or 2.25 MHz. Multilayer (septumized) honeycomb or foam-filled structures are scanned at 250 kHz, 500 kHz, or 1 MHz. Because resolution suffers at lower frequencies, parts are generally scanned...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005351
EISBN: 978-1-62708-187-0
... particulate larger than the openings of the pores of the foam will be trapped on the inlet side of the foam. This is often referred to in the literature as cake filtration, as previously noted. However, the metal must continue to pass through the pores and cells that make up the internal honeycomb structure...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003843
EISBN: 978-1-62708-183-2
... materials evenly distributed. Mixtures containing silica fume may require a longer mixing period to thoroughly distribute the admixture. Workability requires the avoidance of mixes that are so harsh and stiff that honeycombing may occur and mixes so fluid that excess bleed water rises to the surface...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005339
EISBN: 978-1-62708-187-0
... aircraft. For instance, the use of MMCs reduces the maximum deflection of the leading-edge tip of the ventral fin in an F-l6 aircraft by over 50%, reducing the aerodynamic loads and increasing the service life from 400 to 8000 h. Aluminum alloy skins used in the honeycomb structure of the fin were replaced...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003205
EISBN: 978-1-62708-199-3
... laminations where each layer progressively increases the cross-sectional area of the component (e.g., for stringers and spar caps) Bonded joints between rather thin metal sheet and a low-density core material, called honeycomb or sandwich structures ( Fig. 3 ). Core materials include paper dipped in a...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003044
EISBN: 978-1-62708-200-6
... Fig. 2 Streamlined tensile specimen. Source: Ref 13 For normal applications, the coupon is preferred, but for sandwich honeycomb structures, the sandwich beam test specimen is usually preferred ( Fig. 3 ). See also ASTM C 273 ( Ref 15 ). Fig. 3 Sandwich beam test specimen. Source: Ref...