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Extreme damping in compliant composites with a negative-stiffness phase |
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| Authors: | R. S. Lakes |
| Affiliation: | 1. Max-Planck-Institut für Metallforschung , Heisenbergstr. 3, D-70569 Stuttgart, Germany;2. Universit?t Stuttgart, Institut für theoretische und angewandte Physik , Pfaffenwaldring 57, D-70569 Stuttgart, Germany |
| Abstract: | Compliant composite unit cells were made with negative stiffness constituents. Flexible silicone rubber tubes were incorporated in a post-buckled condition to achieve negative stiffness. Large peaks in the mechanical damping tan delta were observed in these systems. Maximum damping was orders of magnitude in excess of the material damping of the silicone rubber. |
| Keywords: | interfacial wave dispersion relation magnetoelectric composite imperfect bonding |