Graphing a cross section of a pdeplot3D

I need a plotting function that will give me a 2D Shape specified by nodes in a thin crooss section of a 3D mesh and allow for an additional data set that will color map this geometry. Should look like a pdeplot3D, however that function doesn't work with user created data points, it seems to need full 3D geometry.

I've been trying to find a good way to accurately represent the stresses that are going on inside this body. I've been using imagesc and organizing the data such that the stress gives a color representation of where there are high and low stresses in a shape similar to the body before deformation (since it is a simple rectalngle). The issue is I need to show the data after deformation in which the cross section becomes irregular and it seems imagesc is ill-equipped for such a scenario.

The surf function also has not given great results because I don't need a 3D image.

I'm going to try using contourf, but I would like to make the cross section dimensions instead of using a rectangular plot.

model = createpde('structural','static-solid');
tic
gm = multicuboid(100,100,50);
model.Geometry = gm;
structuralProperties(model,'Cell',1,'YoungsModulus',10E3,'PoissonsRatio',0.49);
figure
pdegplot(model,'VertexLabels','on','EdgeLabels','on','FaceLabels','on')                                       
structuralBC(model,'Face',1,'Constraint','fixed');
bracketThickness = 5;
generateMesh(model,'Hmax',bracketThickness);
MeshX = model.Mesh.Nodes(1,:);
MeshY = model.Mesh.Nodes(2,:);
MeshZ = model.Mesh.Nodes(3,:);
structuralBoundaryLoad(model,'Face',2,'Pressure',2000);
result = solve(model);
pdeplot3D(model,'ColorMapData',result.Stress.szz)

^ my results with the imagesc model.

That is Strain not Stress, and hope I somewhat accurately conveyed my problem