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Initial stress field (sigini.f)

This subroutine is used for user-defined initial stresses, characterized by the parameter USER on the *INITIAL CONDITIONS,TYPE=STRESS card. The header and variable description is as follows:

      subroutine sigini(sigma,coords,ntens,ncrds,noel,npt,layer,
     &  kspt,lrebar,rebarn)
!     user subroutine sigini
!     INPUT:
!     coords             coordinates of the integration point
!     ntens              number of stresses to be defined
!     ncrds              number of coordinates
!     noel               element number
!     npt                integration point number
!     layer              currently not used
!     kspt               currently not used 
!     lrebar             currently not used (value: 0)
!     rebarn             currently not used
!     OUTPUT:
!     sigma(1..ntens)    initial stress values in the integration
!                        point. If ntens=6 the order of the 
!                        components is 11,22,33,12,13,23

guido dhondt 2012-10-06