Warp analysis types

The following Warp analysis types are available and can be selected from the Process Settings Wizard:

Buckling

Determines whether the warpage of the part is stable or unstable.

If the buckling analysis indicates that the warpage is stable (critical load factor > 1), the deflection results obtained from the buckling analysis provide a good indication of the final deformed shape of the part.

If the buckling analysis indicates that the warpage is unstable (critical load factor < 1), you will need to run a large deflection analysis to determine the final deformed shape of the part.

This analysis is performed on Midplane meshed models.

Small deflection

Select this analysis type if you expect the warpage of the part to be stable. The small deflection analysis provides the final deformed shape of the part, assuming linear stress-strain behavior within the part.

This analysis can be performed on Midplane, Dual Domain and 3D meshed models.

Large deflection

Select this analysis type if you expect the warpage of the part to be unstable, as determined from a previous automatic or buckling analysis, if the warpage of the part is borderline stable/unstable, and/or if you want the most accurate prediction of the shape of the part. The large deflection analysis provides the final deformed shape of the part, allowing for nonlinear stress-strain behavior within the part.

This analysis can be performed on Midplane and 3D meshed models.

Automatic

Select this option if you want the solver to identify whether the warpage is stable or unstable. If the warpage is determined to be unstable and you are using a Midplane mesh, this option will automatically run an additional large deflection analysis to determine the true final deformed shape of the part. Depending on your mesh type, automatic analysis first runs a buckling analysis. A large deflection analysis is run if the Eigenvalue is less than 1.5, otherwise a small deflection analysis is performed.