Vetrogon O. 3. Road accident speed examination results accuracy increase

3. Object of research - process of deformation of a car body of the at car collision as a result of road accident. An object of research is the interrelation between residual deformations of a car body and speed of movement at the moment of impact. Numerical methods of the decision of return problems of mechanics of a deformable solid body are used: the plasticity theory, the elasticity theory, and also methods of 3D-modelling and methods of an experimental research of deformation of breadboard models and car models. Scientific novelty of work: for the first time possibility of increase of accuracy of examination of speed is shown at road accident by the numerical analysis of results of measurements of sizes of damages of a design of the car based on digitization of object and the decision of a FEM return problem; has received the further development the power approach to road accident examination; new dependences between sizes of deformations of elements of a design of the damaged car and its speed before blow are revealed. Practical value of the received results: the method is used at carrying out of examination of road accident by the Crimean scientific research institute of judicial examination and in educational process in SevNTU. Use sphere: expert establishments of Ukraine, scientifically research organisations which are engaged in studying of processes of deformation of cars.