Modeling and Analysis of Biodegradable Helmet Liner: A Comparative Study

The improvement in impact energy absorption properties of helmet gear could significantly enhance the rider’s safety. The current work focuses on using a biodegradable polymer: E-PLA, as a potential alternative for commonly used solid helmet liner materials. First, a static finite element analysis based on AIS standards is carried out to identify a suitable size of honeycomb cell. Further, dynamic impact analysis of honeycomb liner is carried out to evaluate impact parameters such as Peak Linear Acceleration (PLA), Volumetric Energy Absorption (VEA) and Head Impact Criterion (HIC). The results showed that the chosen honeycomb liner provided better values of impact parameters compared to solid liner.