Output results

**Figure 17:** Material displacement mesh
$\begin{figure}\centerline{\epsfig{file=tutorial_3/gid_post_final_materi_displacement.ps,width=12cm,angle=0}} \end{figure}$

View results - Display Vectors - materi displacement

In the post processor of Gid look at the displacements at the end of the calculation. Especially notice that at sheet pile you see two displacements vectors; one is a vector of the sheet-pile displacement, and the other is the vector of the soil displacement near the sheet-pile. The sheet-pile refuges to be compressed (because it is very stiff), so the sheet-pile displacement vector is nearly horizontal. The soil slips over the sheet-pile, so the displacement vector of the soil points also downwards.

**Figure 18:** Deformed mesh
$\begin{figure}\centerline{\epsfig{file=tutorial_3/gid_post_final_deformed_mesh.ps,width=12cm,angle=0}} \end{figure}$

Windows - View Results - Main Mesh - Deformed - Materi Mesh Deform

It is in Gid also possible to draw the deformed FE mesh. In figure 18 we used a factor of 20 to get a clear view of the deformations.

Windows - View Results - Main Mesh - Original

Set the mesh back to original to draw the undeformed mesh again.

**Figure 19:** Material effective plastic strain, kappa
$\begin{figure}\centerline{\epsfig{file=tutorial_3/gid_post_final_materi_plasti_kappa.ps,width=12cm,angle=0}} \end{figure}$

View Results - Contour Fill - Materi plasti kappa

The effective plastic strain shows the Mohr-Coulomb shear failure line, caused by moving the sheet-pile at point A to the left, see 19.

**Figure 20:** Beam bending moment
$\begin{figure}\centerline{\epsfig{file=tutorial_3/gid_post_final_moment.ps,width=12cm,angle=0}} \end{figure}$

View Results - Line Diagram - Scalar - beam force moment 5

Using a line diagram in Gid, the beam moment can be displayed, see figure 20. You need to select beam force moment 5, since these values represent the moment around the -axis in the element_beam_force_moment record, see the users manual.

**Figure 21:** Pressure on sheet pile, left and right

gnuplot

p "sigxx.900" using 2:3 with linespoints, "sigxx.910" using 2:3 with linespoints

set term postscript

set output "post_line_dof_sigxx.ps"

replot

With Gnuplot an X-Y graph of the soil pressures on the sheet-pile is obtained, see figure 21. The second and third column from the sigxx.900 and sigyy.910 need to be used since those contain the coordinate and the stress. Notice the increase of the pressure near the end of the sheet-pile. As an exercise you can try to run the calculation with more elements, to see how much results for the pressure on the sheet-pile change with a finer mesh.

TochnogProfessional