Block Format Keyword
/INISHE/STRS_F/GLOB or /INISH3/STRS_F/GLOB - Initial State for a Global Shell
Description
Describes the initialization of stress tensor given in global coordinate system for shell elements.
Format
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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/INISHE/STRS_F/GLOB/unit_ID
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/INISH3/STRS_F/GLOB/unit_ID
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shell_ID
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nb_integr
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npg
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Thick
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Em
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Eb
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H1
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H2
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H3
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if nb_integr > 0 - Plane stresses
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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 x
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Y
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z
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|
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if nb_integr = 0 - Shear stresses
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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xy
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yz
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zx
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|
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if nb_integr = 0 - Bending stresses
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(7)
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(8)
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(9)
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(10)
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bx
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by
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bz
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|
|
|
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bxy
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byz
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bzx
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 p
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if nb_integr > 0 - Shear stresses
(1)
|
(2)
|
(3)
|
(4)
|
(5)
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(6)
|
(7)
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(8)
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(9)
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(10)
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xy
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yz
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zx
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p
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|
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Field
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Contents
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SI Unit Example
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unit_ID
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Optional unit identifier
(Integer, maximum 10 digits)
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shell_ID
|
Element identifier
(Integer)
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nb_integr
|
Integration point number through the thickness
(Integer)
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npg
|
Number of surface quadrature points
(Integer)
= 0: default set to 1
= 1: must be used for shell formulations Ishell =1, 2, 3, or 4; or Ish3n =1, 2, or 31
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Thick
|
Shell thickness (see Comment 6)
(Real)
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Em
|
Total membrane energy
(Real)
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Eb
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Total bending energy
(Real)
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H1
|
Hourglass force
(Real)
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H2
|
Hourglass force
(Real)
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H3
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Hourglass force
(Real)
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x
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Plane stress in the global frame
(Real)
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Y
|
Plane stress in the global frame
(Real)
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z
|
Plane stress in the global frame
(Real)
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xy
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Shear stress in the global frame
(Real)
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yz
|
Shear stress in the global frame
(Real)
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zx
|
Shear stress in the global frame
(Real)
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bx
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Bending stress in the global frame
(Real)
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by
|
Bending stress in the global frame
(Real)
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bz
|
Bending stress in the global frame
(Real)
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bxy
|
Bending stress in the global frame
(Real)
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byz
|
Bending stress in the global frame
(Real)
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bzx
|
Bending stress in the global frame
(Real)
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p
|
Plastic strain
(Real)
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| 1. | The nb_integr should be equal to the nb_integr defined in the shell property definition. |
| 2. | Only compatible with Ishell =1, 2, 3, 4 or Ish3n =1, 2, 31. |
| 3. | If nb_integr ≠ 0, repeat the optional continuation lines for each integration point. |
| 4. | The npg must be set according to the formulation, which is used in the shell property. |
| 5. | For npg = 0 or 1 and nb_integr > 0, the optional continuation lines have to be repeated for each integration point. |
| 6. | The value given for thickness (Thick) will be used instead of the thickness given in property or in the shell definition. |
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