*SECTION_SHELL

LS-DYNA Input Interface KeywordDefines the shell element properties.

Format

(1) (2) (3) (4) (5) (6) (7) (8)
*SECTION_SHELL
sec_ID ELFORM NIP
Thick

Definition

Field Contents SI Unit Example
sec_ID Section identifier of the elements in the part.

(Integer)
ELFORM Shell element formulation options.
= 0
Set to 1.
= 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 16, 25, or 27 (Default)
QEPH shell formulation and standard triangle (C0).
= -16, 9, 20, 21, or 26
QBAT shell formulation and standard triangle (C0).
= 17
QBAT shell formulation and DKT18 triangular shell element.
= 18
QBAT shell formulation and DKT_S3 triangular shell element.
= 20
QBAT shell formulation and standard triangle (C0) with 6 DOF.

(Integer)
NIP Number of integration points through the thickness with 0 ≤ N ≤ 10.
= 0
Set to 2 integration points through the thickness.
= 1
Membrane shell behavior for ELFORM=5, 9 (no bending).
= 2 to 10
From 2 to 10 integration points through the thickness.

(Integer)
Thick Shell thickness.

(Real)

 [ m ]

Comments

  1. This keyword maps to /PROP/TYPE1 (SHELL) for an isotropic material and /PROP/TYPE9 (SH_ORTH) for an orthotropic material.
  2. The recommended shear correction factor 5/6 is always used.
  3. The number of integration points through the thickness NIP is limited to 10.
  4. The option “_TITLE” can be added to the end of this keyword. When “_TITLE” is included, an extra 80 characters long line is added after the keyword input line which allows an entity title to be defined.