DAMPING PROPERTIES OF ALUMINUM FOAMS

Authors
BANHART J BAUMEISTER J WEBER M
Citation
J. Banhart et al., DAMPING PROPERTIES OF ALUMINUM FOAMS, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 205(1-2), 1996, pp. 221-228
Citations number
14
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
205
Issue
1-2
Year of publication
1996
Pages
221 - 228
Database
ISI
SICI code
0921-5093(1996)205:1-2<221:DPOAF>2.0.ZU;2-T
Abstract
The mechanical damping properties of aluminium foams were measured. An experimental apparatus for measuring the loss factor avoiding parasit ic damping is described. The difficulties, originating from random spa tial density variations, are discussed. A procedure to overcome the pr oblems is proposed and tested. The measured loss factors show that alu minium foams have a damping capacity which is enhanced in comparison w ith most massive cast aluminium alloys and increases with increasing p orosity level.