Analysis and test of a damped composite sandwich structure

Ian R. Searle; Thomas Martin; Roy Ikegami

doi:10.1117/12.239100

1 May 1996 Analysis and test of a damped composite sandwich structure

Ian R. Searle, Thomas Martin, Roy Ikegami

Proceedings Volume 2720, Smart Structures and Materials 1996: Passive Damping and Isolation; (1996) https://doi.org/10.1117/12.239100
Event: 1996 Symposium on Smart Structures and Materials, 1996, San Diego, CA, United States

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.

Citation Download Citation

Ian R. Searle, Thomas Martin, and Roy Ikegami "Analysis and test of a damped composite sandwich structure", Proc. SPIE 2720, Smart Structures and Materials 1996: Passive Damping and Isolation, (1 May 1996); https://doi.org/10.1117/12.239100

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