A Generalizing Model of Plastic Deformation of Discrete Materials of Road Structures under Impact of Cyclic Loads

Number of journal: №5-2016
Autors:

A.S. ALEKSANDROV

DOI: https://doi.org/10.31659/0585-430X-2016-737-5-27-30
УДК: 625.04

 

AbstractAbout AuthorsReferences
It is established that under the impact of repeated loads the process of plastic deformation of soils and discrete materials is hereditary. For mathematical simulation of the plastic deformation, integral equations of the theory of hereditary creep in which the time function is replaced by the function of the number of repeated loads are used. Exponential and logarithmic dependences connecting the plastic deformation with number of repeated loads, material parameters and components of the stress tenser in principal axes have been obtained. It is shown that these dependences generalize a number of models previously proposed abroad and in the Russian Federation. On the basis of the analyze of experimental data obtained during the test of materials in dynamic devices of three-axial compression at different values of the stress deviator, coefficients of the proposed models of deformation have been determined. The sphere of using logarithmic and exponential dependences has been also defined.
A.S. ALEKSANDROV, Candidate of Sciences (Engineering), Docent (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Siberian State Automobile and Highway Academy (5, Mira Avenue, Omsk 644080, Russian Federation)

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