Discrete simulation and micromechanical analysis of two-dimensional saturated granular media

- Undrained behavior of saturated granular media was simulated in DEM using the coupled method.
- At high axial strains the behavior predicted by coupled and constant volume methods was different.
- Increasing void ratio increased the positive pore pressure and decreased negative pressure values.
- Micromechanical behavior and anisotropy of undrained particles were studied using the two methods.