Honeycomb Materials
10/25/2008
“Honeycomb
cores are available in a variety of materials for sandwich structures. These
range from paper and card for low strength and stiffness, low load applications
(such as domestic internal doors) to high strength and stiffness, extremely
lightweight components for aircraft structures. Honeycombs can be processed into
both flat and curved composite structures, and can be made to conform to
compound curves without excessive mechanical force or heating.”
|Netcomposites:
http://www.netcomposites.com/education.asp?sequence=49 (11/14/2008)
Warning: Sometimes the older links no longer work. Go to the US Patent Patent number search page, copy the Patent number into the search box and search. For the articles, use your browser to go the Journal site.
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Notes
“Thermoplastic
honeycombs are usually produced by extrusion, followed by slicing to thickness.
Other honeycombs (such as those made of paper and aluminium) are made by a
multi-stage process. In these cases large thin sheets of the material (usually
1.2x2.4m) are printed with alternating, parallel, thin stripes of adhesive and
the sheets are then stacked in a heated press while the adhesive cures. In the
case of aluminium honeycomb the stack of sheets is then sliced through its
thickness. The slices (known as 'block form') are later gently stretched and
expanded to form the sheet of continuous hexagonal cell shapes.”
Netcomposites:
http://www.netcomposites.com/education.asp?sequence=49 (11/14/2008)
“In the case of
paper honeycombs, the stack of bonded paper sheets is gently expanded to form a
large block of honeycomb, several feet thick. Held in its expanded form, this
fragile paper honeycomb block is then dipped in a tank of resin, drained and
cured in an oven. Once this dipping resin has cured, the block has sufficient
strength to be sliced into the final thicknesses required.’
Netcomposites:
http://www.netcomposites.com/education.asp?sequence=49 (11/14/2008)
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Review Articles
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US Patents
10/28/2008
7,442,425
High porosity honeycomb and method
10/21/2008
7,438,966
Honeycomb segment and honeycomb structure using the honeycomb segment
10/14/2008
7,434,659
Acoustic septum cap honeycomb
10/7/2008
7,431,873
Method
for manufacturing honeycomb structure
9/30/2008
9/23/2008
7,427,308
Honeycomb filter for exhaust gas decontamination and exhaust gas decontamination
apparatus
7,427,309
Honeycomb filter and ceramic filter assembly
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Journal Articles
11/7/2008
Biodegradable honeycomb collagen scaffold for
dermal tissue engineering
(p 1103-1111)
Journal of Biomedical Materials Research 87A #4 (2008)
Abstract
10/3/2008
Experimental investigation of static and fatigue behaviour of composites
honeycomb materials using four point bending tests
(265-273)
Composite Structures 87 #3 (2009)
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Roger D. Corneliussen
Editor
Telephone: 610 883 0055
rcorneliussen@4spe.org
www.maropolymeronline.com
Copyright 2008 by Roger D. Corneliussen