Description: The file can be used in conjuction to provide Stress-Strain plots from uniaxial tension on an repetitive volume element (RVE) with periodic boundary conditions.

File structure:

1. CallAbq.py:
   Generates Paramters in Paramters.p Calls PeriodicModel.py in abaqus Reads Results.p Plots model results (Stress-Time and Stress-Strain Plot)

2. PeriodicModel.py: Creates cubic volume element applies material properties generates load steps applies periodic boundary conditions applies uniaxial strain performs postprocessing writes results into Results_Export.p

3. Tools.py: contains the plot function