/INIBRI/FAIL

Block Format Keyword Describes the failure criteria for a brick.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/INIBRI/FAIL/unit_ID
brick_ID Nlay nptr npts nptt lay_ID fail_ID Ifail_typ Nvar mat_ID
V1 etc etc    
  VN      

Definitions

Field Contents SI Unit Example
unit_ID Unit Identifier.

(Integer, maximum 10 digits)

  
brick_ID Element identifier.

(Integer)

  
Nlay 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)

  
Nvar Number of failure criteria variables to initialize.

(Integer)

  
mat_ID Material identifier to initialize.

(Integer)

  
V1 First failure criteria variable value.

(Integer)

  
VN Nth failure criteria variable value (3 values per line).

(Integer)

  

Comments

  1. If nptr > 1, npts > 1, nptt > 1, the lines with real values have to be repeated for each integration point.
  2. Nvar values needs to be written for each integration point of the elements as a block of Nvar variable Vi with 3 variables per line.
  3. The total number of integration points in the element is: n p t r ⋅ n p t s ⋅ n p t t MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqGqFfpeea0xe9vq=Jb9 vqpeea0xd9q8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr 0=vr0db8meaabaqaciGacaGaaeqabaWaaeaaeaaakeaacaWGUbGaam iCaiaadshacaWGYbGaeyyXICTaamOBaiaadchacaWG0bGaam4Caiab gwSixlaad6gacaWGWbGaamiDaiaadshaaaa@4787@ .
  4. The integration points are ordered 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).

  5. 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/ALTER
    28
    /FAIL/BIQUAD
    30
    /FAIL/CHANG
    13
    /FAIL/COCKCROFT
    34
    /FAIL/CONNECT
    20
    /FAIL/EMC
    27
    /FAIL/ENERGY
    11
    /FAIL/FABRIC
    31
    /FAIL/FLD
    7
    /FAIL/GURSON
    35
    /FAIL/HASHIN
    14
    /FAIL/HC_DSSE
    32
    /FAIL/JOHNSON
    1
    /FAIL/LAD_DAMA
    18
    /FAIL/MULLINS_OR
    33
    /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/VISUAL
    36
    /FAIL/WIERZBICKI
    9
    /FAIL/WILKINS
    3