/FAIL/WILKINS
Block Format Keyword Describes the Wilkins failure model.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
/FAIL/WILKINS/mat_ID/unit_ID | |||||||||
Ifail_sh | Ifail_so |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
fail_ID |
Definition
Field | Contents | SI Unit Example |
---|---|---|
mat_ID | Material
identifier. (Integer, maximum 10 digits) |
|
unit_ID | Unit Identifier. (Integer, maximum 10 digits) |
|
Hydrostatic pressure
exponent. (Real) |
||
Deviatoric
coefficient. (Real) |
||
Hydrostatic pressure
limit. (Real) |
||
Critical
damage. (Real) |
||
Ifail_sh | Shell failure flag.
(Integer) |
|
Ifail_so | Solid failure flag.
(Integer) |
|
fail_ID | Failure criteria identifier. 2 (Integer, maximum 10 digits) |
Example (Metal)
#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/UNIT/1
unit for mat
# MUNIT LUNIT TUNIT
Mg mm s
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#- 1. MATERIALS:
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/PLAS_JOHNS/1/1
Metal
# RHO_I
2.8E-9 0
# E Nu
60000 .3
# a b n EPS_p_max SIG_max0
370 190 .4 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/WILKINS/1/1
# Alpha Beta Plim Df Ifail_sh Ifail_so
1.8 .75 750 0.3 1 0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#enddata
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
Comments
- The cumulative
damage is:
Where,
Where,- P
- Hydro pressure
Where, are the deviatoric stresses.
- The fail_ID is used with /STATE/BRICK/FAIL and /INIBRI/FAIL. There is no default value. If the line is blank, no value will be output for failure model variables in the /INIBRI/FAIL (written in .sta file with /STATE/BRICK/FAIL option).