Abstract

In the physical aspect, the relaxation phenomenon is represented by the process of establishing thermodynamic equilibrium in a system consisting of a large number of particles. From the point of view of physical chemistry, this phenomenon arises due to the reorientation of the intramolecular structure and intermolecular movements, showing similarities with the phenomenon of creep. In structural mechanics, relaxation is understood as a reduction in stress at a fixed deformation. The calculation of the long-term safety of reinforced concrete structures is related to the dynamics of their stress state and leads to relaxation problem to account the redistribution of stresses from concrete to reinforcement. In this paper, an approach based on the concept of the strength structure of structural materials is proposed to solve them.

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