{HEAD ~ The body} of energy absorbing material may optionally be subjected to {TAIL ~ approximately hydrostatic pressure} preferably exceeding the shear yield stress of the energy absorbing material 
subjected to
{ HEAD ~ The body } of energy absorbing material may optionally be subjected to { TAIL ~ approximately hydrostatic pressure } preferably exceeding the shear yield stress of the energy absorbing material
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH