How to extract data from a stress displacement graph generated by pdeplot3d?

Hi, I have a stress dispaclement graph of a thin plate with a uniform pressure acting on one of its plates, this was generated using the pdeplot3d function. I have attached the code. I was wondering I might be able to extract the stress at certain co-ordinates. I.e (0,0,0) or the centre edges at the top for examples etc. I've tried to use a few solutions I've found online but they don't seem to work on the graph generated by pdeplot3d. Any help would be very much appreiciated.

%=============Fea Analysis of Greatest Stress =============%
%Create the PDE
structuralmodel = createpde('structural','static-solid');
%Create Geometry and Add to the PDE%
gm = multicuboid(1000e-6,1000e-6,20e-6);
structuralmodel.Geometry=gm;
pdegplot(structuralmodel,'FaceLabels','on','FaceAlpha',0.5)

%Add Properties of Silcon and Boundary Condtions to the PDE
structuralProperties(structuralmodel,'YoungsModulus',170E6,'PoissonsRatio',0.22,'MassDensity',2300);
structuralBC(structuralmodel,'Constraint','fixed','Face',3:6);

%Define type of load, generate Mesh and Solve PDE
structuralBoundaryLoad(structuralmodel,'Face',2,'Pressure',110e3);
generateMesh(structuralmodel);
structuralresults = solve(structuralmodel);

figure
pdeplot3D(structuralmodel,'ColorMapData',structuralresults.Stress.syy, ...
                          'Deformation',structuralresults.Displacement)
figure
pdeplot3D(structuralmodel,'ColorMapData',structuralresults.Stress.sxx, ...
                          'Deformation',structuralresults.Displacement)

Answer 1

[Ravi Kumar]

Use the function interpolateStress. For example, in your case you could do:

intrpStress = interpolateStress(structuralresults,0,0,0)

The output intrpStress would contain all components of stress at (0,0,0).