Force to open molds

I have a blow mold and mold hanger setup.

Can SW help me determine the pressure it will take to open/crack the mold hangers open?

I  know the closing force of the hanger perpendicular to the split line.

I can not use the blow pressure because of exhaust vents and leaks.

I'm triing to determine the maximum pressure we can apply to the product during it's forming process.

SolidworksSimulation