Support Knowledge Base

Structural Mechanics Solutions

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

1171: Manual tuning of the Contact Pair condition.

In COMSOL 4.3b, the contact pair conditions were changed to improve manual tuning of the augmented Lagrangian contact formulation. In the augmented Lagrangian method, the penalty factor controls how “hard” the...
Version: 4.3b,4.4 - Platform: All Platforms

1157: Improve the performance of contact models built in version 4.0a or...

I have an old contact model that was built in COMSOL Multiphysics 4.0a or earlier. Now that I am using a later version of COMSOL Multiphysics, how can I take advantage of the better stability of this version in my...
Version: All versions - Platform: All Platforms

1156: Displacements Control Spatial Frame

The property **Displacements control spatial frame** does not exist in Solid Mechanics in newer versions of COMSOL (4.3b and subsequent releases), because the displacements now always control the spatial frame. When...
Version: 4.3b,4.4 - Platform:

1103: Frequency-dependent meshing

I am solving a wave equation over a wide range of frequencies. At the highest frequencies, I need a very fine mesh in order to resolve the wavelength. For lower frequencies, I am happy with a coarser mesh. How do...
Version: 4.1,4.2 - Platform: All Platforms

1102: Improve the stability of your contact model

In this article, you can find both general tips of how to improve convergence in your contact model and how to change solver settings of older models. ## Some General Contact Tips * The choice of source and...
Version: All versions - Platform: All Platforms