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Proceedings Paper

Mechanical properties of metallic closed cellular materials containing organic materials for passive damping
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Paper Abstract

A metallic closed cellular material containing organic materials for the smart materials has been developed. Powder particles of polystyrene coated with a nickel-phosphorus alloy layer using electroless plating were pressed into green pellets and sintered at high temperatures. A metallic closed cellular material containing organic materials was then fabricated. The density of this metallic closed cellular material was measured. The density of this material is smaller than that of other structural metals. On the fabricated metallic closed cellular materials, compressive properties, Young's modulus and ultrasonic attenuation coefficient were measured. The compressive tests showed that this material has the different stress-strain curves among the specimens that have different thickness of the cell walls. Each stress-strain curve has a long plateau region, the sintering temperatures of the specimens affect the compressive strength of each specimen, and energy absorbing capacity is very high. Young's modulus of this material depends on the thickness of the cell walls and the sintering temperature. The attenuation coefficient of this material observed by ultrasonic measurement is very large. These results indicate that this metallic closed cellular material can be utilized as energy absorbing material and passive damping material.

Paper Details

Date Published: 27 June 2002
PDF: 8 pages
Proc. SPIE 4697, Smart Structures and Materials 2002: Damping and Isolation, (27 June 2002); doi: 10.1117/12.472653
Show Author Affiliations
Satoshi Kishimoto, National Institute for Materials Science (Japan)
Norio Shinya, National Institute for Materials Science (Japan)


Published in SPIE Proceedings Vol. 4697:
Smart Structures and Materials 2002: Damping and Isolation
Gregory S. Agnes, Editor(s)

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