Investigation of oblique impact in traffic accidents

The different kinds of oblique impact between rigid body (car) and fixed obstacles were studied. It is shown that for simplification of car crash investigation may be used boundary conditions of motion before and after any collisions. Therefore additional was investigated different cases of oblique impact when the body before collisions moves: - in transport motion; in plane motion; - rotate around fixed axis or fixed point; - in general space motion. For calculation of motion parameters after collision the mass and tensor of inertia of a body where used together with conditions of unilateral constraints. Local deformation of a body in contact points was taken into account by coefficient of restitution of normal impulse and coefficient of dry friction.