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Appendix C Material Model Interface Name Argument Description Type Modify TIMEDP Time dependent creep flag LV yes STATVC On entry: State variables at end of last step On exit: Current state variables RA yes STATVP State variables at end of last step RA - CRPMDL Creep model parameters RA - STRESS Current stress tensor RA - SUBROUTINE USRVFC Purpose Verifies the incoming and outgoing arguments to the user-programmed subroutine USRCRP. This subroutine may be utilised by the user but no alterations are permitted. SUBROUTINE USRVFC A( LCTUSR ,NEL ,NG ,NCRPP ,NT6 , B NSTAT ,NDSE ,DISEN ,DT ,RSPTIM , C D TEMP DCRP ,PRESS ,DCRPDC ,STREQV ,DCRPDQ ,CRPSTN ,DCRPDS ,SWLSTN ,DCRPDP , , E VERIFY ,ERROR ,FEA ,EXPCRP ,STEPRD , F TIMEDP ,MODE , G STATVC ,STATVP ,CRPMDL ,STRESS ) DIMENSION A STATVC(NSTAT) ,STATVP(NSTAT) ,CRPMDL(NCRPP) , B STRESS(NDSE) The argument list is the same as that for subroutine USRCRP, except for the additional integer variable MODE (see continuation line F in the above subroutine statement). This variable is used in this subroutine: MODE=1 is for verification of incoming arguments, MODE=(any other value) is for verification of outgoing arguments. 374
