/INISHE/STRA_F or /INISH3/STRA_F

Block Format Keyword This describes the initial state for strain.

Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
/INISHE/STRA_F/unit_ID or /INISH3/STRA_F/unit_ID
shell_ID nb_integr npg Thick          
For each integration point (Nb_integr > 0)
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
ε 1 ε 2 ε 12 ε 23 ε 31
κ 1 κ 2 κ 12        

Definitions

Field Contents SI Unit Example
unit_ID Unit Identifier.

(Integer, maximum 10 digits)

 
shell_ID Element identifier.

(Integer)

 
nb_integr Integration point number through the thickness.

It corresponds to the property definition of this element. Must be equal to the number of integration points given in the shell property.

(Integer)

 
npg Number of surface quadrature points.
Must be set according to the formulation which is used in the shell property.
= 0 (Default)
Set to 1
= 1
Must be used for shell formulations Ishell =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 (Ishell =12)

(Integer)

 
Thick Shell thickness. Will be used instead of the thickness given into property or in the shell definition.

(Real)

[ m ]
ε 1 Membrane strain in 1st direction.

(Real)

 
ε 2 Membrane strain in 2nd direction.

(Real)

 
ε 12 Membrane shear strain.

(Real)

 
ε 23 Shear strain in direction 23.

(Real)

 
ε 31 Shear strain in direction 31.

(Real)

 
κ 1 Bending strain in direction 1.

(Real)

 
κ 2 Bending strain in direction 2.

(Real)

 
κ 12 Bending strain in direction 12.

(Real)

 

Comments

  1. For npg = 3 or 4, the optional continuation lines must be repeated npg times for each integration point.
  2. The initial state for shells may be defined by more than one block.