A finite element model of human body called THUMS has been developed to predict gross motions and multiple skeletal injuries of a whole human body during impacts. Recently, we have developed a head/brain model and thoracic/abdominal internal organ models to evaluate more severe injury risks for occupants and pedestrians in automotive accidents. The head/brain model was validated against some test data on translations and rotations of the head obtained from the literature. The internal organ models were validated against hub impacts for the thorax or abdomen. These models are currently attempted to predict severe injuries in the brain and liver, etc. Finally, we will show THUMS family including a small female, a large male, and a child, etc, which have been developed to investigate the effects of body size on impact responses and injuries.
Keywords: Impact biomechanics; FEM; Human body model; Injury prediction; Soft tissue