This paper presents novel sandwich-structured superelastic shape memory alloy (SMA) honeycomb dampers. The system comprises a superelastic SMA honeycomb plate that provides self-centering and large deformation capacity, a high-damping rubber core, metallic and rubber infills (round or hexagonal) that support the SMA walls and dissipate energy, and two encased steel plates to restrain out-of-plane buckling of the honeycomb plate. First, the numerical simulation method is validated against experimental results of an non-sandwiched SMA honeycomb damper. Subsequently, a comparative study is conducted to assess the mechanical performance and local stress and strain distribution of various sandwich-structured SMA honeycomb dampers. Finally, the optimal configuration is identified. The results demonstrate that sandwich-structured SMA honeycomb dampers substantially enhance strength and energy-dissipation capacity while effectively reducing stress and strain concentrations compared with their non-sandwiched counterparts.
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Yan et al. (Tue,) studied this question.
www.synapsesocial.com/papers/69d894ad6c1944d70ce05a56 — DOI: https://doi.org/10.1177/1045389x261438748
Shengquan Yan
Luwei Liu
Sasa Cao
Journal of Intelligent Material Systems and Structures
Guangdong University of Technology
Guangzhou Electronic Technology (China)
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