Understanding Computation Incidents

When a computation fails, you can display a diagnosis that explains the cause of the incident.

If a problem is detected during a computation (simulate and generate result), a dialog box appears to inform you that there is a problem in the computation process and shows you a message that explains the cause of the incident. The diagnosis also appears in the specification tree under the solution result and is stored with the simulation when you propagate the simulation.

Before you begin: A computation must have been launched.
Related Topics
Executing a Simulation from the Structural Analysis Workbench
Singularity Computation

  1. In the Execution toolbar, click Scenario Incident Diagnosis or double-click the diagnosis directly in the specification tree.



    The Computation Incident Diagnosis dialog box appears.

  2. Select a line to display the cause of the problem.

  3. Click Close.

Incident Examples

Singularity Detection

If a singularity is detected while launching the computation operation, the following error message appears: 

Error
Singularity detected in translation (pivot too small).
Possible reasons: missing restraint or connection
specifications.
Display deformation or displacement vectors to diagnostic the
problem.

The part or the product is not fully constrained. You have to add the missing specifications. To find the missing specifications you can generate deformed mesh images or displacement images and then animate the generated images.

Invalid Material Characteristics

The following error message appears when you launch a computation if the referenced material is not properly defined:

Invalid material characteristic.
Test for Materials has detected 1 error.
Check your Material.

You have to check and modify the linear elastic properties of the referenced material. See Modifying ELFINI Linear Elastic Material Properties.