/INISHE/FAIL or /INISH3/FAIL

Block Format Keyword Describes the failure criteria for a shell.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/INISHE/FAIL/unit_ID or /INISH3/FAIL/unit_ID
shell_ID Nlay npg nptt lay_ID fail_ID Ifail_typ Nvar mat_ID  
V1 etc etc    
  VN      

Definition

Field Contents SI Unit Example
unit_ID Unit Identifier.

(Integer, maximum 10 digits)

 
shell_ID Element identifier.

(Integer)

 
Nlay Number of layers.

(Integer)

 
npg Number of surface quadrature points.
= 0 (Default)
Set to 1
= 1
Must be used for shell formulations shell_ID =1, 2, 3, 4, 24 or Ish3n =1, 2, 31.
= 3
Must be used for DKT18 shell formulation (Ish3n =30).
= 4
Must be used for BATOZ formulation (shell_ID =12).

(Integer)

 
nptt Integration point number through the thickness.

It corresponds to the property definition of this element.

(Integer)

 
lay_ID Layer to initialize identifier.

(Integer)

 
fail_ID Failure criteria to initialize identifier.

(Integer)

 
Ifail_typ Failure criteria number to initialize. 2

(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 (3 values per line).

(Integer)

 

Comments

  1. If npg > 1, nptt > 1, and Nlay > 1, the lines with Real values have to be repeated for each integration point.
  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.