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12 April 2010 Damping capacity in shape memory alloy honeycomb structures
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SMA honeycombs have been recently developed by several Authors [1, 2] as innovative cellular structures with selfhealing capability following mechanical indentation, unusual deformation (negative Poisson's ratio [3]), and possible enhanced damping capacity due to the natural vibration dissipation characteristics of SMAs under pseudoelastic and superelastic regime. In this work we describe the nonlinear damping effects of novel shape memory alloy honeycomb assemblies subjected to combine mechanical sinusoidal and thermal loading. The SMA honeycomb structures made with Ni48Ti46Cu6 are designed with single and two-phase polymeric components (epoxy), to enhance the damping characteristics of the base SMA for broadband frequency vibration.
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M-A. Boucher, C. W. Smith, F. Scarpa, W. Miller, and M. R. Hassan "Damping capacity in shape memory alloy honeycomb structures", Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 764332 (12 April 2010);


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