Applications of a Cu-based shape memory alloy in monuments retrofitting were conceived, designed, and tested. The polycrystalline nature of the material requires a preliminary discussion in order to allow the extension of properties which are well known for monocrystalline specimens. Furthermore, one of the main drawbacks of the investigated alloy is its brittleness. Therefore, fatigue tests were carried out and the results of those conducted under cycles of torsion loading–unloading are reported. In particular, the identification of the response range, which is most suitable for structural engineering applications, is pursued.
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