The goal of this Simulation is to validate the Numerical simulation method .
I am doing Stretch blow molding Simulation for water bottle with Abaqus using the real process settings.
The problem is, rate of expansion of preform is too high in simulation compare to the real process video ( we have developed the transparent mold !!) . the cavity pressure and end shape matches perfectly with the real process. but, the inflation is not matching throughout the process.
it would be very helpful if someone can put an ideas in answer section
Dear Ridheshkumar,
I assume you control the airflow in your model by prescribing the pressure.
The growth rate of the bottle depends on the mechanical properties of the PET you use in your model. Therefore a small difference between the implemented material parameters and the experimental ones can create a significant difference.
I suggest that you try to play with the material parameters you have used in your model and see how the behavior in the simulation change.
Regards,
Ali
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