In situ adjustment of a visco hyper elastic model for stretch blow molding process simulation of poly‐ethylene terephthalate bottles

Simulation of the stretch blow molding (SBM) process necessitates to develop a model able reproduce material behavior at high strain rate, large deformation with temperature gradient. On other hand, both need understand polyethylene terephthalate (PET) characteristics and final bottle performance requirements continue get higher. That regular update identification model. Bottle producers are interested by managing this without specific complex apparatus not available in an industrial context. The work presented here describes in-situ adjustment for upgrading all parameters visco-hyperelastic (VHE) from small number blowing tests that do necessitate equipment. accuracy is validated through ability updated VHE shape, pressure evolution tension rod during PET bottles.