Lin Pan, Jinhong Xia, Hongxing Han*
FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.6, pp. 1219-1228, 2020, DOI:10.32604/fdmp.2020.010545
Abstract In this paper, the discrete element method (DEM) is used to study the
microstructure of expansive soils. The results of the numerical calculations are in
agreement with the stress-strain triaxial test curve that is obtained for a representative expansive soil. Biaxial compression tests are conducted for different confining
pressures (50 kpa, 100 kpa, and 150 kpa). Attention is paid to the following aspects:
deviatoric stress, boundary energy, friction energy, bond energy, strain energy,
kinetic energy, and the contact force between grains when the test specimen is
strained and to the effect of the different confining pressures on the internal crack… More >
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