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Compressive properties and energy absorption of hollow sphere aluminium

journal contribution
posted on 2005-01-01, 00:00 authored by Y Yamada, Cui'E Wen, T Asahina, K Kato, T Sonoda, M Mabuchi
Manufactured cellular aluminums have been developed for a wide range of automotive applications where weight savings, improved safety, crashworthiness and comfort are required. The plateau deformation behavior of cellular aluminums under compressive loading makes this new class of lightweight materials suitable for energy absorption and comes close to ideal impact absorbers. In the present study, aluminum hollow hemispheres were firstly processed by pressing. Hollow sphere aluminum samples with a body-centered cubic (BCC) packing were then fabricated by bonding together single hollow spheres, which were prepared by adhering together hollow hemispheres. Hollow sphere aluminum samples with various kinds of sphere wall thicknesses of 0.1 mm, 0.3 mm and 0.5 mm but the same outside diameter of 4 mm were investigated by compressive tests. The effects of the sphere wall thickness on the mechanical properties and energy absorption characteristics were investigated.

History

Journal

Materials science forum

Volume

475

Issue

479

Pagination

333 - 336

Publisher

Trans Tech Publications Ltd.

Location

Aedermannsdorf, Switzerland

ISSN

0255-5476

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2005, Trans Tech Publications, Switzerland

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