The Perpendicular shrinkage, before warpage result indicates the percentage of shrinkage in each element in the plane of the element, at right angles to the local orientation direction, before warpage is calculated.
The local orientation direction is the direction of fiber orientation for fiber-filled materials and the direction of material orientation (flow direction before freezing) for all other materials.
This result is produced by a Warp analysis based on predicted shrinkages from the specified material shrinkage model (residual stress, CRIMS, or residual strain).
This result uses shrinkage computed at each element before warpage is calculated, therefore these shrinkage values represent the tendency to shrink at each element before the structural influence of the surrounding part is considered.
Use this result to find out whether differential shrinkage is likely to cause warpage. Differential shrinkage may be caused by differences in shrinkage values between different regions of the part, or by large differences between the parallel and perpendicular shrinkage.
This result is not displayed by default. To display this result, add a new plot to the display in the active study or customize the default results list to include this result.
Look for regions in which there is high differential shrinkage. These regions are more likely to deform.