Long Rod Extension System Utilizing Shape Memory Alloy

摘要

An elongated rod made of a shape memory alloy compostion having selectedpseudoelasticity properties, is deformed into a dimensionaly compact coil for packaged storage understree mainained by physical constraint. Upon selective removal of the constraint allowing shape recovery, a substantial increase in axial length of the rod occurs in order to improve its performance in various installations, including long rod penetrating projectiles.