Grass shows way to light constructions: lattice cylinders make the lightest possible struts and shafts, and may be improved still further from prototypes seen around for millions of years

Article Abstract:

Lattice cylinders made from high strength fibre or light alloys are much lighter than conventional products, and were originally developed for the aircraft and space industries in Russia. However latest applications include aerial masts, electrical insulators, and transmission shafts for ships and helicopters. The technology involves the bonding of filament-wound carbon fibre lattice shafts, with light alloy end fittings bonded to the ends of the lattice tubes. Further research, into the construction of natural plants such as grass, will also have an influence on latticed structural designs.

Lattice dynamics, Lightweight construction

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Foam sandwich spreads the load

Article Abstract:

A number of manufacturers have developed a material consisting of a ceramic and aluminium foam sandwich. The main property of the material is the combination of impact and sound absorption due to the aluminium foam layers and load-spreading due to the ceramic layers. Potential applications include automobile construction, civil engineering and ballistic missiles. Foam sandwich manufacturers include the Shinko Wire Co. and Karmann.

Usage, Product information, Ceramics, Ceramic materials, Aluminum construction, Karmann-Rheine GmbH und Company KG, Shinko Wire Company Ltd.

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Sandwiches absorb all shocks: sandwich constructions of metals and plastics, or metals and concrete, show cost benefits in an astonishing range of applications

Article Abstract:

Using steel sheets to sandwich an appropriate filling offers a valuable combination of strength, ductility, energy absorbency and flexural rigidity. Steel sheets linked by steel rods, with concrete filling the gap, offer blast resistance, while steel linked with polypropylene foam is effective for motorway crash barriers.

Product development, Sandwich construction

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