An efficient finite strain constitutive model for amorphous thermoplastics: Fully implicit computational implementation and optimization-based parameter calibration

•A novel visco-elastic visco-plastic constitutive model is consistently formulated.•Well-established rheological elements are judiciously combined.•An implicit integration scheme is derived, leading to a highly efficient algorithm.•A new unsupervised two-stage optimization-based calibration strategy...

Celý popis