Analysis and Modeling of Process of Residual Deformations Accumulation in Soils and Granular Materials

International Conference on Construction, Architecture and Technosphere Safety 2017

土木建筑工程

Aleksandrov, A.S.^1 ; Dolgih, G.V.^1 ; Kalinin, A.L.^1

Faculty Roads and Bridges, Siberian State Automobile and Highway University, Mira Avenue, 5, Omsk

644080, Russia^1

关键词: Analysis and modeling;    Discrete material;    Dynamic devices;    Material testing;    Principal axes;    Residual deformation;    Stress tensors;    Triaxial compression;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/262/1/012004/pdf
DOI  :  10.1088/1757-899X/262/1/012004

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

It is established that under the influence of repeated loads the process of plastic deformation in soils and discrete materials is hereditary. To perform the mathematical modeling of plastic deformation, the authors applied the integral equation by solution of which they manage to obtain the power and logarithmic dependencies connecting plastic deformation with the number of repeated loads, the parameters of the material and components of the stress tensor in the principal axes. It is shown that these dependences generalize a number of models proposed earlier in Russia and abroad. Based on the analysis of the experimental data obtained during material testing in the dynamic devices of triaxial compression at different values of the stress deviator, the coefficients in the proposed models of deformation are determined. The authors determined the application domain for logarithmic and degree dependences.