/INIBRI/FAIL

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/INIBRI/FAIL/`unit_ID`
`brick_ID`	`N`_lay	`nptr`	`npts`	`nptt`	`lay_ID`	`fail_ID`	`Ifail_typ`	`N`_var	`mat_ID`
`V`₁		etc		etc		`V`_N

Definitions

Field	Contents	SI Unit Example
`unit_ID`	Unit Identifier (Integer, maximum 10 digits)
`brick_ID`	Element identifier (Integer)
`N`_lay	Number of layers (Integer)
`nptr`	Number of integration points in direction r (Integer)
`npts`	Number of integration points in direction s (Integer)
`nptt`	Number of integration points in direction t (Integer)
`lay_ID`	Layer to initialize identifier (Integer)
`fail_ID`	Failure criteria to initialize identifier (Integer)
`Ifail_typ`	Failure criteria to initialize type. 5 (Integer)
`N`_var	Number of failure criteria variables to initialize. (Integer)
`mat_ID`	Material identifier to initialize. (Integer)
`V`₁	First failure criteria variable value. (Integer)
`V`_N	`N`^th failure criteria variable value. (Integer)

Example (One Failure Model)

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/PLAS_JOHNS/1/1
Steel
#              RHO_I
              7.8E-9                   0
#                  E                  Nu
              210000                  .3
#                  a                   b                   n           EPS_p_max            SIG_max0
                 270                 450                  .6                   0                   0
#                  c           EPS_DOT_0       ICC   Fsmooth               F_cut               Chard
                   0                   0         0         0                   0                   0
#                  m              T_melt              rhoC_p                 T_r
                   0                   0                   0                   0
/FAIL/JOHNSON/1/1
#                 D1                  D2                  D3                  D4                  D5
                0.11                0.08                -1.5                   0                   0
#              EPS_0  Ifail_sh  Ifail_so                                    Dadv               Ixfem
                   1         1         1                                       0                   0
#  Fail_ID
      4711
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PROP/SOLID/1/2
Solid part -1
#   Isolid    Ismstr               Icpre               Inpts      Irot    Iframe                  dn
        14         0                   0                   0         0         0                   0
#                q_a                 q_b                   h
                   0                   0                   0
#             dt_min
                   0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Output state file (*.sta)

For failure model (fail_ID 4711) there are 8 integration points in one element and one failure criteria variable for each element.

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|----10---|
/INIBRI/FAIL
#------------------------ REPEAT --------------------------
#  BRICKID      NLAY      NPTR      NPTS      NPTT      ILAY     IRUPT IRUPT_TYP     NUVAR      IMAT
# REPEAT K=1,NPTR,NPTS                               
#    UVAR(1,I) .............                         
#    ...............              UVAR(NUVAR,I)      
#---------------------- END REPEAT ------------------------
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|----10---|
         1         1         2         2         2         1      4711         1         1         1
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|----10---|

Example (Two Failure Models Applied on One Material)

If two different failure models (with two different fail_ID 4711 and 5711) for one material are defined, then both failure criteria for each element will be printed in state file.

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/PLAS_JOHNS/1/1
Steel
#              RHO_I
              7.8E-9                   0
#                  E                  Nu
              210000                  .3
#                  a                   b                   n           EPS_p_max            SIG_max0
                 270                 450                  .6                   0                   0
#                  c           EPS_DOT_0       ICC   Fsmooth               F_cut               Chard
                   0                   0         0         0                   0                   0
#                  m              T_melt              rhoC_p                 T_r
                   0                   0                   0                   0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/FAIL/JOHNSON/1/1
#                 D1                  D2                  D3                  D4                  D5
                0.11                0.08                -1.5                   0                   0
#              EPS_0  Ifail_sh  Ifail_so                                    Dadv               Ixfem
                   1         1         1                                       0                   0
#  Fail_ID
      4711
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/FAIL/BIQUAD/1/1
# SAHRAEI1 BIQUAD
#                 c1                  c2                  c3                  c4                  c5
                  0.                 0.0                 0.3                0.00                 0.0
#        P_thickfail    M-flag
                  .0         1
#  Fail_ID
      5711
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PROP/SOLID/1/2
Solid part -1
#   Isolid    Ismstr               Icpre               Inpts      Irot    Iframe                  dn
        14         0                   0                   0         0         0                   0
#                q_a                 q_b                   h
                   0                   0                   0
#             dt_min
                   0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Output state file (*.sta)

#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|----10---|
/INIBRI/FAIL
#------------------------ REPEAT --------------------------
#  BRICKID      NLAY      NPTR      NPTS      NPTT      ILAY     IRUPT IRUPT_TYP     NUVAR      IMAT
# REPEAT K=1,NPTR,NPTS                               
#    UVAR(1,I) .............                         
#    ...............              UVAR(NUVAR,I)      
#---------------------- END REPEAT ------------------------
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|----10---|
         1         1         2         2         2         1      4711         1         1         1
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
 9.8766841568993E-01
         1         1         2         2         2         1      5711        30         3         1
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 2.4163849709251E-01 0.0000000000000E+00 0.0000000000000E+00
 #---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|----10---|

Comments

If nptr > 1, npts > 1, nptt > 1, the lines with real values have to be repeated for each integration point.
Nvar values needs to be written for each integration point of the elements as a block of Nvar variable V_i with 3 variables per line.
The total number of integration in the element is: $n p t r \cdot n p t s \cdot n p t t$ .
The integration points are order from nptr, npts and nptt.
Example for 4 integration points in (r,s,t): (1,1,1), (1,1,2), (1,2,1), (1,2,2), (2,1,1), (2,1,2), (2,2,1), (2,2,2).
Every failure model has a Ifail_typ which is used to identify the failure model to initialize for the element. Verify failure law to element type compatibility in /FAIL.

Keyword

Ifail_typ

/FAIL/BIQUAD

30

/FAIL/CHANG

13

/FAIL/CONNECT

20

/FAIL/EMC

27

/FAIL/ENERGY

11

/FAIL/FABRIC

31

/FAIL/FLD

7

/FAIL/HASHIN

14

/FAIL/HC_DSSE

32

/FAIL/JOHNSON

1

/FAIL/LAD_DAMA

18

/FAIL/NXT

25

/FAIL/ORTHSTRAIN

24

/FAIL/PUCK

16

/FAIL/SNCONNECT

26

/FAIL/SPALLING

8

/FAIL/TAB1

23

/FAIL/TBUTCHER

2

/FAIL/TENSSTRAIN

10

/FAIL/USERi

4, 5, 6

/FAIL/WIERZBICKI

9

/FAIL/WILKINS

3