If a material has been shrinkage tested, then the Autodesk Moldflow materials database includes either the Residual strain shrinkage model or the Corrected residual in-mold stress (CRIMS) shrinkage model, depending on which provides the best match between predicted and actual measured shrinkages. If the material has not been tested for shrinkage, then the CRIMS model is not available, and the uncorrected residual stress model is used instead.
The selected shrinkage model is shown on the Shrinkage tab of the Thermoplastics Material dialog. You can however change the shrinkage model using the following procedure.
- Click
, or double-click the process settings icon in the Study Tasks pane. The Process Settings Wizard appears. - Click Advanced options, on the Fill Settings or Fill+Pack Settings page of the Wizard, to display the Fill+Pack Analysis Advanced Options dialog.
- Click Edit next to the Molding Material drop-down menu, to display the Thermoplastics Material dialog.
- Click the Shrinkage Properties tab, then select the required shrinkage model in the Shrinkage model drop-down list. If an Edit model coefficients button appears, you can click on it to view further information about the shrinkage model coefficients, the shrinkage testing performed, or additional settings like the Use CRIMS option.