RESOURCE–SAVING RESERVE OF STRENGTH CHARACTERISTICS OF LONGITUDINAL BEAM OF THE METRO WAGON TRUCK Journal title: EUREKA: Physics and Engineering Authors: Aleksandr Kuznetzov, Vladislav Skurikhin, Vyacheslav Shavkun Subject(s): Astronomy/Astrophysics/Space Science, Computer and Information Science, Electrical and Electronic Engineering, Engineering, Physics, Chemical Engineering, Energy, Mechanical Engineering