Shear Rate

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Shear Rate

The distribution of shear rate of part cavity is shown in different colors at current instant. Shear rate is the rate of shear deformation of the material during the polymer processing. Shear rate distribution is related to the variation of velocity gradient and molecular orientation. High shear rate tends to drastically deform molecular chains even to break and then weaken the strength of product. Viscous heating due to high shear rate also should be noticed.