3. Energy absorption
Energy absorption is one of the preferred fields of application for cellular materials, and metallic foams in particular. Generally speaking, this involves taking advantage of the particular behavior of this type of material, highlighted by its highly characteristic compression curve (figure 1 ), which comprises three distinct zones:
Zone 1 corresponds to normal material behavior in compression. Towards its end, it may include a peak, generally considered harmful, as it temporarily imposes a high level of stress;
zone 2 is the specific and interesting zone of the curve. It corresponds to the successive collapse of the various foam cells, hence the sometimes irregular shape of the compression curve. This stress, which is almost...
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Energy absorption
Flexion
Bibliography
Websites
Referring site :
Metal foam dealers :
http://www.goodfellow.com/catalogue/GFCatalogue.php?Language=F
Events
Metfoam is held every two years (odd-numbered years), with the venue changing with each show.
Cellmat takes place every two years (even years) in Germany.
Patents
[B1] Energy absorption device for motor vehicle bumper beam, EP 1902907 B1.
[B2] Motor vehicle front end with large support plates for shock absorbers, and associated vehicle, EP 2 241 480 B1.
[B3] Frame structure of vehicle body, US 5611568 A.
[B4] Headlamp comprising energy absorption means, US 7156545 B2.
[B5] Use of metal foams...
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list, as the reference site contains a regularly updated list)
Alantum, German and Korean producer of open-structure nickel-iron foams
http://www.alantum.com/en/special/manufacturing.html
Alulight, Austrian manufacturer of powder-metallurgy...
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