I. Introduction
In traffic crash accidents, it is often happened that the body of driver and passengers, particularly the head, is going to be impacted with steering wheel, trim panel, windshield or airbag, where the human head brain tissue and neck are easy to be damaged. The reference [1] pointed out that the head damages reach up to 54% and the brain tissue contusion becomes the main traffic accident death reason. Therefore, it's of engineering application value to carry out the research work of the brain tissue deformation characteristics for reducing the traffic accident injuries.