How is plasticity in the liner accounted for?

The plasticity in the liner is calculated based on layers.  When the stresses in a layer exceed the peak stress, they drop to the residual stress.  The procedure follows the same approach that is outlined in the book by Owen, D.R.J. and Hinton, E. (1986):

Owen, D.R.J. and Hinton, E. (1986).  Finite Elements in Plasticity:  Theory and Practice

 

RS2 does not output the liner strains to interpret.