what is Motorcycle Helmet's function
2011-11-16 The conventional motorcycle helmet has two principal protective components: a thin, hard, outer shell typically made from polycarbonate plastic, fiberglass, or Kevlar and a soft, thick, inner liner usually made of expanded polystyrene or polypropylene "EPS" foam. The purpose of the hard outer shell is:A. To prevent penetration of the helmet by a pointed object that might otherwise puncture the skull.
B. To provide structure to the inner liner so it does not disintegrate upon abrasive contact with pavement. This is important because the foams used have very little resistance to penetration and abrasion.
