“…A promising means of increasing damping in CFRP composites is to hybridize the CFRP material with high stiffness, high damping materials such as NiTi shape memory alloy (SMA) wires (Bachmann et al, 2012;Cohades and Michaud, 2018;Coluzzi et al, 2006aColuzzi et al, , 2006bde Oliveira et al, 2010;Finegan and Gibson, 1999;Katsiropoulos et al, 2020;Van Humbeeck and Kustov, 2005;Van Humbeeck and Liu, 2000). SMA damping capacity arises from either (i) the stress-induced austenite-tomartensite phase transformation (referred to as superelastic damping) and stress-induced martensite (SIM) reorientation and detwinning (Bhaskar et al, 2020;Cohades and Michaud, 2018;Katsiropoulos et al, 2020) or (ii) thermal-induced martensite (TIM) reorientation and detwinning (referred to as martensitic damping) (Bassani et al, 2013;Coluzzi et al, 2006a;Van Humbeeck and Kustov, 2005; Van Humbeeck and Liu, 2000). For the helicopter blade application, we investigate martensitic damping and post-processing hydrogenation heat treatments of commercially available NiTi wire.…”