Andrew Moa Blog Site

Recently, I often do some cold plate structural analysis, involving thin plate modeling. Although I have tried to use Shell units for analysis, the stress and displacement results of Shell units are larger than those of Solid units, and it is more likely that the calculation will not converge when it comes to contact problems. Fortunately, Ansa provides a way to generate a body mesh by stretching Shell units, which can quickly generate a Solid mesh through Shell units, greatly saving modeling time.

1. Related commands

In Ansa, the following commands are commonly used to set contact for Abaqus:

2. Contact pair

The most commonly used contact pairs are generally created by calling up the creation dialog box through AUXILIARIES → CONTACT → CONTACT .

Common settings are generally as follows:

Ansa can quickly set up connections through the Connection function.

Take screw connection as an example here, first display all bolts separately. use TOPO → Curves → Tubes2Curve Convert bolt geometry to curves.

Keep the curve and delete the bolt geometric surface.

Then use Topo → Points → Edges to convert the curve into 3D points and delete the curve.