TY - JOUR PY - 2013// TI - Numerical simulations of the occupant head response in an infantry vehicle under blunt impact and blast loading conditions JO - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of engineering in medicine A1 - Sevagan, Gopinath A1 - Zhu, Feng A1 - Jiang, Binhui A1 - Yang, King H. SP - 778 EP - 787 VL - 227 IS - 7 N2 - This article presents the results of a finite element simulation on the occupant head response in an infantry vehicle under two separated loading conditions: (1) blunt impact and (2) blast loading conditions. A Hybrid-III dummy body integrated with a previously validated human head model was used as the surrogate. The biomechanical response of the head was studied in terms of head acceleration due to the impact by a projectile on the vehicle and intracranial pressure caused by blast wave. A series of parametric studies were conducted on the numerical model to analyze the effect of some key parameters, such as seat configuration, impact velocity, and boundary conditions. The simulation results indicate that a properly designed seat and internal surface of the infantry vehicle can play a vital role in reducing the risk of head injury in the current scenarios. Comparison of the kinematic responses under the blunt impact and blast loading conditions reveals that under the current loading conditions, the acceleration pulse in the blast scenario has much higher peak values and frequency than blunt impact case, which may reflect different head response characteristics.

Language: en

LA - en SN - 0954-4119 UR - http://dx.doi.org/10.1177/0954411913483430 ID - ref1 ER -