An SMA Passive Ankle Foot Orthosis: Design, Modeling, and Experimental Evaluation

Table 1

Calibrated material properties through mechanical testing for wire 1 and wire 2.

Parameter	Wire 1	Wire 2	Unit
𝐸𝐴	50.0×10^3	37.0×10^3	MPa
𝐸𝑀	27.0×10^3	27.0×10^3	MPa
𝑀𝑓	223.0	236.0	K
𝑀𝑠	238.0	239.0	K
𝐴𝑠	268.0	268.0	K
𝐴𝑓	275.0	273.0	K
𝐶𝑀	6.5	7.3	Mpa/K
𝐶𝐴	7.2	6.8	Mpa/K
𝜈	0.33	0.33	—
𝐻	0.029	0.038	—