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 PM4Sand model undrained cyclic simple shear element
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#. The original model is from 2D Undrained Cyclic Direct Simple Shear Test Using One Element at University of Washington, Department of Civil and Environmental Eng by Geotechnical Eng Group L. Chen, P. Arduino - Feb 2018.

#. The Python code is converted by **Steve Xu from University of Texas at Austin** (zhongzexu@utexas.edu), and shown below, which can be downloaded :download:`here </pyExamples/PM4Sand_Cyc_Cal.py>`.

.. literalinclude:: /pyExamples/PM4Sand_Cyc_Cal.py
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