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Book Chapter

By Stephen Ward
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003388
EISBN: 978-1-62708-195-5
... Abstract A sandwich structure is comprised of layered composite materials formed by bonding two or more thin facings or facesheets to a relatively thick core material. This article describes the sandwich panel failure modes. It tabulates the nomenclature and definitions for loads, geometry...
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...
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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
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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
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Published: 01 November 1995
Fig. 8 Basic sandwich structural criteria More
Image
Published: 01 January 2001
Fig. 6 Moisture propagation into a honeycomb core sandwich structure More
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Published: 01 January 2001
Fig. 1 Example of a repair to a sandwich structure. See text for discussion. More
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Published: 01 January 2001
Fig. 1 Sandwich structure More
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Published: 01 January 2001
Fig. 17 Graphite fiber-PMR-15 sandwich structure More
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003456
EISBN: 978-1-62708-195-5
... Abstract Maintainability is a function of the durability, damage tolerance, and repairability of a structure. This article discusses the configurations of composite structures, such as sandwich, stiffened-skin, and monolithic structures, used in commercial aircraft composites. It describes...
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 shape of core to fit customer's specific needs. The article provides information on the basic concept of creating sandwich structures and its corresponding aspects like material selection, design guidelines, and structural efficiency. core characteristics design guidelines honeycomb material...
Book Chapter

By Jim Kindinger
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003375
EISBN: 978-1-62708-195-5
..., mechanical properties, environmental compatibility, formability, durability, and thermal behavior. The article provides information on the benefits and concepts of a sandwich panel containing lightweight structural cores. lightweight structural cores honeycomb structural cores balsa structural cores...
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Published: 01 January 2001
Fig. 5 Barely visible impact damage (BVID) and heavy impact damage on a sandwich structure with a honeycomb core More
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
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Published: 01 August 2018
Fig. 2 Typical applications of adhesive-bonded joints in aircraft. (a) Helicopter components. (b) Lockheed C-5A transport plane, with various types of honeycomb sandwich structures totaling 2230 m 2 (24,000 ft 2 ) in area More
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003376
EISBN: 978-1-62708-195-5
...-of-plane effects Sandwich structure “Bolted and Bonded Joints” discusses considerations necessary to integrate all composite parts in the overall product. The stress concentrations associated with the load transfer at joints are one of the most important areas that must be analyzed...
Book Chapter

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...
Image
Published: 01 December 2004
Fig. 4 Solvent-generated voids in the prepreg skins and fillet areas of a honeycomb sandwich structure composite. (a and b) Bag side. (c) Tool side. Epi-bright-field illumination, 5× objective. In these micrographs, there is evidence of some scratching on the polished surface. This is due More
Book Chapter

By Gerald Flanagan, Carol Meyers
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003385
EISBN: 978-1-62708-195-5
... on this topic can be found in the article “Analysis of Sandwich Structures” in this Volume. Computer Codes General-purpose finite element codes are typically used for the evaluation of stability for plates with more general shapes and boundary conditions. Modern finite element codes are usually...