Experimental Studies of Impact Protection Performance of Aircrew Helmet Typical Component

The impact protections provided by several aircrew helmet components are investigated in using the SHPB apparatus.The energy absorption rates of these components are examined.The impact process and energy absorption process are discussed.Further,the way in which the material mechanical properties of helmet shell and the density of helmet foam liner affecting the energy absorption capacity of helmet is analyzed,showing that the mechanical properties of shell and the density of foam liner play an important role in the energy absorption process to a certain extent.The experimental method used by this paper is original.This work provides reliable experimental basis for designing a new generation aircrew helmet.