*INITIAL_STRESS_SHELL_{OPTION}

LS-DYNA Input Interface KeywordDefines the reference state for elements belonging to a part, using given nodal coordinates.

Format

For Option = <BLANK>
(1) (2) (3) (4) (5) (6) (7) (8)
*INITIAL_STRESS_SHELL
EID npg nb_integr     LARGE
For Option = SET
(1) (2) (3) (4) (5) (6) (7) (8)
*INITIAL_STRESS_SHELL_SET
SID npg nb_integr     LARGE
Stress card for LARGE = 0
(1) (2) (3) (4) (5) (6) (7) (8)
T SIGXX SIGYY SIGZZ SIGXY SIGYZ SIGZX EPSP
Stress card for LARGE = 1
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
T SIGXX SIGYY SIGZZ SIGYZ
SIGZX SIGZX EPSP

Definition

Field Contents SI Unit Example
OPTION
<BLANK>
Define initial state for shell element.
SET
Define initial state for all element in the defined set of part.
EID 4 or 3 node shell element identifier.

(Integer)

SID Part set identifier.

(Integer)

npg Number of Gauss point in plane.
= 1
Under-integrated element and 3 node shell element.
= 4
Fully-integrated element.

(Integer)

nb_integr Integration point number through the thickness.

(Integer)

LARGE Format size.
= 0
Regular format.
= 1
Large format.

(Integer)

T Through thickness integration point parametric position between -1 and 1.

(Real)

SIGij Stress value in the direction ij.

(Real)

$\left[\text{Pa}\right]$
EPSP Plastic strain.

$\left(-\frac{\sqrt{3}}{3},-\frac{\sqrt{3}}{3}\right),\left(+\frac{\sqrt{3}}{3},-\frac{\sqrt{3}}{3}\right),\left(+\frac{\sqrt{3}}{3},+\frac{\sqrt{3}}{3}\right),\left(-\frac{\sqrt{3}}{3},+\frac{\sqrt{3}}{3}\right)$