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Proceedings Paper

Analysis and test of a damped composite sandwich structure
Author(s): Ian R. Searle; Thomas Martin; Roy Ikegami
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Paper Abstract

Composite sandwich panels are increasingly attractive structural components for modern space structures. Their light weight, high stiffness, and 'manufacturability' make them ideal for primary structure. One disadvantage of sandwich panels is the low damping, typically on the order of 0.5 percent. This problem has been addressed during the course of designing an all composite spacecraft bus. A visco-elastic treatment and a constraining layer have been applied to a composite sandwich panel. Analysis and tests were performed on the panel in both the damped, and the un-damped configuration. A five-fold increase in the panel damping was achieved, and some valuable lessons learned. These lessons, the modeling methods, test and analysis results are presented.

Paper Details

Date Published: 1 May 1996
PDF: 10 pages
Proc. SPIE 2720, Smart Structures and Materials 1996: Passive Damping and Isolation, (1 May 1996); doi: 10.1117/12.239100
Show Author Affiliations
Ian R. Searle, Boeing Defense & Space Group (United States)
Thomas Martin, Boeing Defense & Space Group (United States)
Roy Ikegami, Boeing Defense & Space Group (United States)

Published in SPIE Proceedings Vol. 2720:
Smart Structures and Materials 1996: Passive Damping and Isolation
Conor D. Johnson, Editor(s)

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