Abstract
The imposition of increasingly stringent legislative standards and the concept of motor vehicle as working tool have recently generated a research interest in occupant safety problems. This paper approaches the questions of the consequences of a head-on collision between two vehicles. A generally applicable mathematical model offering an accurate simulation of both vehicle and occupant and their mutual interactions has been developed to analyse strain and stress in the femur and pelvis during such an accident. As a preliminary approach, the input data have been obtained from a simplified model.