Development and validation of finite element model of helmet impact test

Recently, many researchers have investigated helmet design with respect to helmet performance in shock absorption tests. The finite element method contributes greatly to helmet test modeling. Finite element simulations are also indispensable to evaluate head injury criteria. This study performs finite element analyses of helmet impact tests using LS-DYNA software. To compensate for lack of oblique impact tests in helmet standards, this article considers two oblique impact tests. It measures linear accelerations, rotation accelerations, and impact forces of the headform from helmet test simulations. To verify the accuracy of the proposed method, this study compares simulation results with experimental data. The results of this method fit the experimental results well, implying that the numerical method is a practical approach to helmet design problems. Furthermore, the helmet test model proposed here has potential for guiding the future development of helmet technologies.