Stress, Normal to Core result

The Stress, Normal to Core result shows the value most cavity pressure sensors report as the "cavity pressure". While the polymer is molten the stress value is very close to the cavity pressure but when the polymer is frozen and the mold (core) has a significant elastic deformation then the value may be significantly different from the pressure result.

Note: This result is only available for Dual Domain or Midplane meshes, and requires that you enable the Core shift analysis in the Solver parameters of the Process Settings Wizard.

Using this result

Use this result along with the Pressure result, to see the effect of the mold elasticity on the values when validating prediction of the experimental cavity pressure results. High local normal stresses caused by the core elasticity can also cause some cracking in the moldings if the plastic is brittle

You can also use the Stress, Normal to Core result along with the Residual Stress result for the prediction of cracking.