At one point, {HEAD ~ the spring element} 44 is able to overcome {TAIL ~ the restraining force} applied by the shape memory material release mechanism 48 and releases itself, goes to its free state and in doing so it creates a path by fracturing, cracking, puncturing, peeling, tearing, shearing, or otherwise forming a path through shell 42 
At one point , { HEAD ~ the spring element } 44 is able to overcome { TAIL ~ the restraining force } applied by the shape memory material release mechanism 48 and releases itself , goes to its free state and in doing so it creates a path by fracturing , cracking , puncturing , peeling , tearing , shearing , or otherwise forming a path through shell 42
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH