Abstract
Human cadaver scalps of the parietal region were examined on the buffer capacity and were compared with rubber, mould and foamed stylol. A head of 5kg, in the center of which an acceleration sensor was attached, was dropped from various heights upon the steel plate, on which the test pieces were put. At the moment of impact, acceleration curves were recorded. The notches of acceleration curves should correspond to the damages of each layer of the scelps.
Scalp tissues were damaged over 30cm fall, confirmed by histological examination, and torn apart by 40cm fall. In the latter case, the configuration of the acceleration curve showed the bottoming phenomenon, which means the loss of buffer capacity. Maximal accelration value showed 100g.
Viscol A-30 (Thiokol) of 7mm thickness was confirmed as having the epuivalent buffer capacity to human scalp as far as the impact acceleration does not exceed 100g.
Some discussion were made on the buffer capacity and simulation of human scalp.
