ABSTRACT
The principal aim of impact biomechanics is the prevention of injury through environmental modification, such as the provision of an airbag for automotive occupants to protect them during a frontal crash. Among the more popular theories of brain injury due to blunt impact are changes in intracranial pressure and the development of shear strains in the brain. Positive pressure increases are found in the brain behind the site of impact on the skull. Rapid acceleration of the head, in-bending of the skull, and the propagation of a compressive pressure wave are proposed as mechanisms for the generation of intracranial compression that causes local contusion of brain tissue. J. H. Adams et al. indicated that Diffuse axonal injury is the most important factor in severe head injury because it is irreversible and leads to incapacitation and dementia.
