/INIBRI/SCALE_YLD

Block Format Keyword This option is used to set a scale factor for yield stress per element for solids.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/INIBRI/SCALE_YLD/unit_ID
brick_ID nptr npts nptt nlay
Repeat the next line for each integration point and layer
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
Alpha_lkji

Definition

Field Contents SI Unit Example
unit_ID Unit Identifier

(Integer, maximum 10 digits)
brick_ID Element identifier

(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)
nlay Number of layers. 1

(Integer)
Alpha_lkji Yield stress scale factor of integration point lkji with:
l
Layer
k
in direction t
j
in direction s
i
in direction r

(Real)

Example

In this example use:

/PROP/SOLID Isolid=16 with Inpts=322 => must set nptr=3; npts=2; nptt=2 (then i=3; j=2; k=2 in Alpha_lkji).
Figure 1.


Then the yield stress scale factor Alpha_lkji is below, and are totally 3 × 2 × 2 = 12 Alpha_lkji values.
Figure 2. 


#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#-  1. LOCAL_UNIT_SYSTEm:
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/UNIT/2
unit for PROP
#              MUNIT               LUNIT               TUNIT
                  Mg                  mm                   s
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#-  2. GEOMETRICAL SETS:
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PROP/SOLID/1/2
Solid part -1
#   Isolid    Ismstr               Icpre  Itetra10     Inpts   Itetra4    Iframe                  dn
        16         0                   0         0       322         0         0                   0
#                q_a                 q_b                   h            LAMBDA_V                MU_V
                   0                   0                   0                   0                   0
#             dt_min   istrain      IHKT
                   0         0         0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|                              
/INIBRI/SCALE_YLD
# brick_ID      nptr      npts      nptt      nlay 
         1         3         2         2         1
#          scale_yld      
                1.20
                 .80 
                1.20
                1.20
                 .80 
                1.20 
                1.20
                 .80 
                1.20 
                1.20
                 .80 
                1.20 				
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----| 
#enddata
/END
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|

Comments

  1. nlay is used for Thick shells /PROP/TYPE22. The number of integrations points in the corresponding direction needs to be set to 1. For the other solid elements, nlay needs to be set to 1.
  2. The number of integration points must be set according to the property type of the element and its formulation flag.
  3. The scale factor for solids may be defined by more than one block.
  4. This option is available for /MAT/LAW36. The card is ignored for the other materials.