In virtual testing for future assessments, it is expected future transition from a dummy use to human body model use or both. It is necessary to understand the differences of impact response and injury prediction between dummy and human body model. A far side sled model was generated using WorldSID model and THUMS version 4.1. Using pulses of Pole and Advanced European Mobile Deformable Barrier impacts defined in European New Car Assessment Programme far side protocol, simulations were performed on various conditions with the impact angles as parameter. WorldSID and THUMS head movement and rib fracture risk were predicted. The results showed that the THUMS head moved laterally about 100 mm more than the WorldSID head in all cases. WorldSID showed a low risk of rib fracture for both adult and elderly occupants. On the other hand, THUMS showed a low risk of injury for the adult occupant, but a high risk of rib fracture for the elderly occupant. The reason why the amount of movement of the head of THUMS is larger than that of WorldSID is because of larger amount of movement of the pelvis and upper torso caused by the soft flesh around the pelvis and flexible thoracic spine.
Keywords:
Chest injury risk; far-side sled simulation; human body FE model; WorldSID FE model