TY - JOUR AU - Vemury, Chandra Mouli AU - Corradi, Marco AU - Abozaid, Feras AU - Charles, Alasdair PY - 2021 DA - 2021/03/30 TI - The behaviour of Nitinol Wire Bundles for Structural Applications JO - Recent Progress in Materials SP - 009 VL - 03 IS - 01 AB - Shape memory alloys (SMA) are metallic materials with special thermo-mechanical characteristics which could have many structural applications. Within this class of materials, Ni-Ti (Nickel-Titanium) alloys have numerous applications owing to the significant non-linear behaviour they demonstrate. Nitinol, one of the Ni-Ti alloys, has unique properties such as super-elasticity and shape memory effect which makes it suitable for damping vibrations transmitted to structures during high wind and seismic events. Results of a series of tests on Nitinol 55 wires and bundles made from 0.25, 0.5, 0.55 and 1 mm diameter wires are presented in this paper. The tests conducted include static tensile tests, hysteresis tests and cyclic dynamic tests on wire bundles of various diameters. It is demonstrated that small diameter wires (0.25 and 0.5 mm) exhibit higher ultimate strength compared with larger diameter ones (1 mm). Furthermore, the load capacity of the bundles is smaller compared with the load capacity of the corresponding single wires. SN - 2689-5846 UR - https://doi.org/10.21926/rpm.2101009 DO - 10.21926/rpm.2101009 ID - Vemury2021 ER -