Further, {HEAD ~ the material stiffness} of the buffer element is less than the material stiffness of {TAIL ~ the supporting base} 
Further , { HEAD ~ the material stiffness } of the buffer element is less than the material stiffness of { TAIL ~ the supporting base }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL