The article once again highlights the problem of injury growth in our country. The article presents the developed digital jumpsuit for work at height, excluding the possibility of violation of the rules of TB, controlling the integrity of the belts. It is concluded that human security, his life can not be given to him only in a rapidly developing technogenic society, a person should actively help digital technology

Keywords: poor working conditions, simple protective measures against the fall of man, fiber optics, probability, risk, and digital technology

This article presents the results of tests of samples on the basis of equiatomic alloy with shape memory effect. The obtained system of dimensionless quantities that adequately describe the elastic-plastic deformation. It is established that the assessment of scale effects in modeling shockproof device-based alloy with shape memory effect leads to the technical ability of extrapolation of experimental results to other objects to generate the initial data of the mathematical model under the condition of similarity of characteristics of external loads.

Keywords: shock proof device, elastic-plastic deformation, shape memory effect, protection of the joints, scale factor

We investigated the creep of concrete arches based on the following theories: the theory of linear creep by Harutyunyan-Maslov, kinetic theory, the theory of flow, theory of aging, and nonlinear theory of Y. Gurieva. We considered viscoelastic model of the concrete, ie total strain was represented as the sum of elastic strain and creep strain. Solution of the problem was carried out by finite element method. We considered the arch rigidly clamped at the ends and loaded with a uniformly distributed load. Graphs of growth of deflection and stress distribution in the reinforcement and concrete are represented. We obtained the substantial redistribution of stress between the reinforcement and the concrete during creep: in reinforcement stresses increased and in concrete stresses decreased. The strongest redistribution occurs on the theory Y. Gureva.

Keywords: reinforced concrete arch, creep theory of heredity, aging theory, the theory of flow, kinetic theory, finite element method, stress-strain state

Experimental and theoretical study of the models of elastic-plastic elements vehicles manufactured from alloys with shape memory effect. Dynamic tests were carried out in the area of deformation (20-30%), which allowed to achieve optimum energy absorption and return to its original position for subsequent deformation. The model proved highly efficient in terms of the one-dimensional dynamic loading, such full-scale, and allow for the absorption from 55.8 to 97.8% of the inputs, depending on the initial geometrical proportions. Evaluation of the effect of the scale factor in the simulation of elastic-plastic elements on the basis of an alloy with shape memory effect showed the possibility of transferring the results of experimental studies on a real model of the car of the future.

Keywords: model, elastic-plastic element, alloy, shape memory effect, the dynamic test, the scale factor, the car of the future

The analysis of domestic innovative solutions describing shock devices. Topical area of research is to reduce the dimensions of such devices while maintaining their energopogloschatelnoy capacity and use of new materials such as shape memory alloys. The technique of testing such ustroustv with elements made of these materials.

Keywords: shockproof devices, dimensions, energopogloshchayushchaya ability, alloys, shape memory, the method of testing