Shape memory alloys (SMAs) for resilient bridges: A state-of-the-art review

Mechanical properties and constitutive models of shape memory alloy for structural engineering: A review

“…Shape Memory Alloy (SMA) is a smart material that has received the interest of structural engineers and researchers due to its unique thermomechanical properties and flag-shaped hysteresis curve. SMAs have unique features, to recover their original shape when heated (Shape Memory Effect (SME)) and revert to their pristine state after removing loading (superelasticity (SE)) (Billah et al, 2022). Due to their high energy absorbing capabilities and significant reduction in residual deformation, SMAs are becoming a viable substitute for conventional steel (Alam et al, 2007b; Billah et al, 2022).…”

“…SMAs have unique features, to recover their original shape when heated (Shape Memory Effect (SME)) and revert to their pristine state after removing loading (superelasticity (SE)) (Billah et al, 2022). Due to their high energy absorbing capabilities and significant reduction in residual deformation, SMAs are becoming a viable substitute for conventional steel (Alam et al, 2007b; Billah et al, 2022).…”

“…Among them Ni-Ti SMAs gained substantial interest because of their exceptional recovery strain and corrosion resistance. However, large-scale practical applications were impossible due to high production costs and difficult machining processes (Billah et al, 2022). The high cost of production prompted researchers to seek out superior substitute compositions exhibiting desired superelastic and shape-memory properties.…”

“…The high cost of production prompted researchers to seek out superior substitute compositions exhibiting desired superelastic and shape-memory properties. In recent years, different composition of shape memory alloys (Cu-based (Cu-Zn-Al, Cu-Al-Be, Cu-Al-Ni, Cu-Al-Mn) and Fe-based (Fe-Mn-Si-Cr-Ni-1(V,C), Fe-Ni-Co-Ti, Fe-Mn-Si)) have been developed as viable alternatives due to their low production costs and straightforward manufacturing procedures (Billah et al, 2022). Different compositions of SMAs, suitable for civil engineering applications, are presented in Table 1.…”

“…SMAs’ superelastic and shape memory properties made them appealing for civil engineering applications aimed at reducing structural damage. The review of the civil engineering application of SMAs was studied by many researchers (Alam et al, 2007b; Billah et al, 2022; DesRoches and Smith, 2004; Dong et al, 2011; Ozbulut et al, 2011; Song et al, 2006; Wilson and Wesolowsky, 2005). The bibliography mapping of SMAs is shown in Figure 2.…”