Engine Keyword Line search methods for nonlinear analysis.



MAX_ls TOL_ls


Data Description SI Unit Example
= 0
Set to 3.
= 1
Standard line-searches minimizing energy residual.
= 2
Line-searches minimizing force residual.
= 3
Automatic choice between method 1 and method 2 according to Itol defined in /IMPL/NONLIN.
MAX_ls Maximum line search iteration number.

Default = 20

TOL_ls Tolerance for line search iteration.

Default =1.0e-3



  1. The method N=1 is suitable with material nonlinear analyses (from version 10-SA1-202). The old method N=3 is suitable with general nonlinear analyses with contact.