Investigation on Mechanical Behaviors of Shape Memory Alloy Torsion Rod
DSC test is carried out to determine the phase transformation temperatures of a NiTi SMA, which include martensitic starting temperature, martensitic finishing temperature, austenitic starting temperature and austenitic finishing temperature. The mechanical behaviors of shape memory alloy (SMA) torsion rod are investigated by using Zhou’s shear constitutive equation of SMA and the theorem of circular shaft in mechanics of materials. A critical torque equation is developed to describe the relationship between the martensitic phase transformation critical torque of SMA torsion rod and temperature.
B. Zhou et al., "Investigation on Mechanical Behaviors of Shape Memory Alloy Torsion Rod", Advanced Materials Research, Vols. 179-180, pp. 455-458, 2011