Choice of the analysis for stress relaxation of PBT in real time scale
I am trying to simulate the long term behaviour of the PBT (polybutyelene terephtalate) thermoplastic.
The mesh and initial stress distribution data (after ejection from the mold) were exported from Moldflow commercial program as Abaqus input (*inp) file. By default, I have already got a fist step of the simulation (linear elastic properties of polymer). What I actually need now is to simulate the long-term performance (for example in the interval of hundreds or thousands hours). It means that the real time scale is of the utmost importance for the analysis.