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1176: Stress and Strain results at Gauss Points

In some physics interfaces in the Structural Mechanics module, results are available in two versions: at node points and at Gauss points. In the lists of results you can find the categories Stress, Stress (Gauss...
Version: All versions - Platform: All Platforms

1048: Error: 9040 IllegalArgumentException

When I open a 3D model from the model library, or create a a 3D object, for example by extrusion of a circle, or try to view a 2D mesh, I get an error message that includes any of the following strings: Error: 9040...
Version: 3.5a - Platform: All Platforms

1031: Flux through interior boundaries

When plotting the normal flux through the boundaries in my model, I am surprised to see that two adjacent boundary segments have opposed flux. This is clearly not physically possible. Why does this happen and what can...
Version: 3.5a - Platform: All Platforms

1030: Error: "Out of memory"

I get an error message, that contains the words __Out of memory__, for example: Nonlinear solver did not converge. Time: 0 Out of memory during LU factorization. Last time step is not converged. or Failed to...
Version: All versions - Platform: All Platforms

1003: Plotting the mesh together with the solution

How can I see both the mesh and the solution of my COMSOL Multiphysics model? ##COMSOL 4 To plot the mesh together with a solution in COMSOL 4: Start by creating a 3D or 2D Plot group showing the solution you are...
Version: All versions - Platform: All Platforms

982: Axisymmetric plot swept to 3D

How do I make a 3D plot from an axisymmetric 2D calculation? ##COMSOL 4.2 and later In COMSOL version 4.2 and later, axisymmetric physics interfaces will create a default 3D plot by revolving the 2D axisymmetric...
Version: All versions - Platform: All Platforms

973: My flux calculation seems wrong

I am solving a diffusion-like problem in COMSOL Multiphysics and discovered that boundaries that are defined with insulation/symmetry conditions have an integrated value of the normal component of the flux that is far...
Version: All versions - Platform: All Platforms

913: Computing Time and Space Integrals

How do I compute integrals over space or time? What if I want to use the result of these integrals elsewhere in my model? This is a general description of how to use Integral operators. A more thorough walkthrough on...
Version: All versions - Platform: All Platforms

768: 3D slice plot of arbitrary shape

Is it possible to get a slice plot at some other angle, i.e. not parallel to the coordinate planes? Can I even change its shape? ##COMSOL 4 There are two **Plane types** for slices: **Quick** and **General**. The...
Version: All versions - Platform: All Platforms

125: Integration over arbitrary cross section

##COMSOL 4 A surface integral can be evaluated over a set of domains in 2D, 2D axisymmetric, boundaries in 3D, or using any 2D **Data Set** evaluated from a solution. In the **Model Builder**, under **Results**,...
Version: All versions - Platform: All Platforms