The work is devoted to the issues of finite element modeling of energy-absorbing truck mounted attenuators (TMA) used on the shadow vehicles in the zones of stationary and mobile road and construction works to protect workers from collisions with vehicles, as well as to reduce the severity of an accident for the driver who collided. Discusses various designs of TMAs, the main problems in design and defines the criteria for the development of structures based on mathematical modeling by the finite element method.
The article discusses a technique for virtual modeling of the process of deformation and fracture of the structure of a crash cushion, which is used to protect the places of road works, which occurs when a car hits the device during a road accident. The peculiarity of the approach consists in taking into account and modeling the processes of fracture of special energy-absorbing elements used in devices for absorbing impact energy due to the directional destruction of these elements.
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