Polymer skin fraction result

The Polymer skin fraction shows the thickness fraction of the polymer skin over the duration of the analysis.

This result is generated from a Gas-assisted Fill+Pack analysis using Midplane analysis technology.

Using this result

The Polymer skin fraction result provides you with a good approximation of the extent of gas permeation through the part. The maximum value is 1, which corresponds to a region of solid polymer.

A value of less than 1 indicates a region hollowed out by injected gas.

Note: It is recommended that you deselect the Nodal averaged option when viewing this result. A plot will be shown where each element is assigned a single color, however, elements where gas permeation has occurred are easier to identify.

Things to look for

• A value of 1.0 indicates that the element is completely filled with polymer. Regions with a value of less than 1 indicate a region hollowed out by gas, possibly due to a large gas injection pressure.