Best Material Model for Polyetherimide (PEI)

In this video I will show how to find the best material model for polyetherimide (PEI). The focus is on predicting the large strain viscoplastic response of this important thermoplastic.

[@master__oma]

Great description.
1. I have been trying to figure out how to change unit of True Stress (GPa) to True stress (MPa) on the MCalibration software when I import my experimental data. Do you have a clue on how to go about changing the unit ?
2. Also, I have tried using the "strain (compression)" tool on MCalibration to model the hysteresis of TPU (Thermoplastic Polyurethane) but it did not work unfortunately when I load my experimental data into the software. Although it modeled the hysteresis when I used the "Strain control", "Strain (tension)" options on MCalibration. Any idea on how to go about this?