Example68 Analysis with Overlapping Meshes

General

• An axis is inserted into a ring. The outer diameter of the axis is slightly larger than the inner diameter of the ring.
   

• In this example, overlapping meshes are used for the ring hole and the axis. A similar analysis is performed in Example 42 where the initial strain is used.
  Unlike Example 42, it is not required to calculate the initial strain manually in advance in this example. Also, the analysis can be performed even if the initial strain is not obtained.
   

• The distributions of displacement and stress are solved.

• Unless specified in the list below, the default conditions are applied.

To create the overlapping meshes, the ring hole and the axis must be meshed in the different meshing spaces. If meshing is performed in the same meshing space,
an overlapping area is absorbed in either one of the bodies and the meshes will not overlap.

Analysis Space

Analysis Condition

Model

For a stable contact analysis, the calculation is performed on the half of the model in X direction, and a symmetric boundary condition is applied to the plane of symmetry.

Body Attributes and Materials

* Available from the material DB

Boundary Condition

The boundary conditions are set as follows.

Results

The contacting face pressure is shown below. The vectors show the pressure and directions on the contacting face. The unit is [Pa].

The model dimension, the fitting differential, and the material are the same as in Example 42. Similar pressure is generated.