Abstract
An actuator with compact, lightweight and flexible properties as artificial muscle for use in rehabilitation has been fabricated by forming shape memory alloy (SMA) wire and band in the shape of wave, and its mechanical performance is experimentally investigated. As a result, it was found that the wave shaped SMA wire was expanded until strain of 20%〜30% and returned to original shape fully when heated above austenite finish temperature A_f. This suggests that the wave shaped SMA wire is applicable to an artificial muscle.
