Shape Memory Alloy Mechanisms for CubeSats

Innovators at NASA’s Glenn Research Center have developed lightweight and reliable mechanisms based on shape memory alloys (SMAs) for small satellites such as CubeSats. SMAs have a unique ability to effect a reversible phase transformation, so that they can withstand being severely deformed and recovered repeatedly. Glenn’s innovation, flown in a successful space mission, uses SMA components in actuators and hinging elements to improve retention, release, and deployment of crucial structures such as solar arrays.