New calculation of the Volumetric Shrinkage

[PascalGosset]

In my reports, I often introduce the deflections with a picture of the shrinkages.

I explain that their variations are responsible of the warpage.

I show that they depend on wall thicknesses, position of the gate, orientation of material ...

People understand those explanations.

But they are often shocked by the values of the volumetric shrinkages.

Because these results are very far from the linear shrinkages they know.

It's always difficult to try to explain them how this shrinkage is calculated.

So, Could you redefine the volumetric shrinkage to get values closer to the linear shrinkages ?

[PascalGosset]

[yannick.moret]

Volumetric shrinkage is a volumetric shrinkage, not a linear one. It is different physical value. We cannot modify this.

The request should be more : Display linear shrinkage

Did you try to use the shrink analysis ?(limited to dual domain and midplane)

[PascalGosset]

I thought that shrinkage analysis did not exist any more since a long time.

I see now it is possible but not while you are launching a warpage analysis.

Then it does not work for a 3D mesh and for materials without CRIMS.

So, effectively my request change :

Could you add the main shrinkage results to the warpage analysis ?

I mean : the Parallel linear shrinkage, the Perpendicular linear shrinkage, and above all, the Average linear shrinkage.

And this possibility for the 3 kinds of mesh and for all materials ?

Many thanks.