Lagamine

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For the displacement control type of drained triaxial compression demonstrated herein. The consolidation phase is skipped and the simulation directly starts from a consolidated state at 100 kPa. The top wall is controlled by displacement, the right-lateral wall boundary is controlled by LICHA (applying a constant confining pressure).

• Creation of the project, simulation and Gmail.
• From the \textsc{LagaProgs} toolbar, click on \colorbox{lightgray}{Data} and then on \colorbox{lightgray}{Analysis and problem type}. A new window pops up where you can select the type of analysis and the type of problem. Our case can be simplified as an axisymmetric problem for a purely 2D mechanical analysis (no hydro-mechanical coupling is considered). Select \colorbox{lightgray}{2D MECHANICAL} under \textit{ANALYSIS TYPE} and \colorbox{lightgray}{AXISYMMETRIC} under \textit{PROBLEM TYPE}.

\paragraph{Geometry} Remarks: Apply \textit{LICHA} elements on the right side (stress control for constant confining pressure). Since we will monitor the position of the top nodes in the y-direction, it is required to fix the corresponding degree of freedom at the top of the sample (DOF number 2). See (Figure \ref{fig_triaxialDisplaceControlGeoIllu}).