Plot results in Gid

Open in Gid results

View - Postprocess

File - Open

tutorial_1_flavia.msh

View - Zoom - In

In Gid you first need to open the Gid results files as written by Tochnog, and then zoom in to get the slope full in the figure.

Plot boundary conditions in Gid

View results - Display Vectors - materi bounda dof - All

**Figure 5:** Boundary conditions
$\begin{figure}\centerline{\epsfig{file=tutorial_1/gid_post_gravity_materi_bounda.ps,width=12cm,angle=0}} \end{figure}$

Tochnog also writes information about boundary conditions, external forces, etc. in the Gid post-processing files. In the present example, you can look in Gid at the boundary conditions with the command as given above.

Plot gravity results

View results - Default Analysis/Step - time - 1.

View results - Contour Fill - materi stress - sigyy

**Figure 6:** Vertical stress
$\begin{figure}\centerline{\epsfig{file=tutorial_1/gid_post_gravity_sigyy.ps,width=12cm,angle=0}} \end{figure}$

These commands show how you obtain in Gid a contour filled plot of the vertical stress field after gravity is imposed (time 1.0).

Plot safety results

View results - Default Analysis/Step - time - 1.32

Windows - View Style - Style - All Lines

View results - Display Vectors - materi velocity - $\vert$ materi velocity $\vert$

$\begin{figure}\centerline{\epsfig{file=tutorial_1/gid_post_safety_materi_velocity.ps,width=12cm,angle=0}} \end{figure}$

The velocity profile at instability clearly shows how a circular segment slides away. It is evident that the Mohr-Coulomb shear failure condition with reduced cohesion and friction angle causes this instability.

TochnogProfessional