The Shear rate (3D) result shows the shear rate in the part and the feed system at the time the result was written.
This result relates to the guideline provided in the material database and is generated from a Fill analysis using 3D analysis technology.
The shear rate is a measure of how quickly the layers of plastic are sliding past each other. If this happens too fast, the polymer chains break and the material degrades.
The shear rate result may have only small portions of the cross–section that are above the maximum material limit. Regions above the limit could be subject to material degradation, embrittlement and poor surface finish.
When the maximum shear rate is near or above the shear rate limit, it is useful to look at the shear rate as an XY graph.