PSHELL
Defines the membrane, bending, and transverse shear properties for CTRIA3 and CQUAD4 elements.
Format
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|
| PSHELL | PID | MID1 | T | MID2 | 12I/T**3 | MID3 | TS/T | NSM |
| Z1 | Z2 | MID4 |
Example
PSHELL,105,501,0.0833,501,,501,,4.0
Fields
| Field | Contents |
|---|---|
| PID | Property identification number. (Integer > 0) |
| MID1 | Material identification number for the membrane. (Integer > 0 or blank) |
| T | Default membrane thickness for Ti on the connection entry. If T is blank then the thickness must be specified for Ti on the CQUAD4. (Real or blank) Thickness scale factor if TFLAG = 1 ($T_i=T_i * T$) |
| MID2 | Material identification number for bending. (Integer ≥ -1 or blank) |
| 12I/T**3 | Bending moment of inertia ratio, $12I/T^3$. Ratio of the actual bending moment inertia of the shell, $I$, to the bending moment of inertia of a homogeneous shell, $T^3/12$. The default value is for a homogeneous shell. (Real > 0.0; Default = 1.0) |
| MID3 | Material identification number for transverse shear. (Integer > 0 or blank) |
| TS/T | Transverse shear thickness ratio $T_s/T$. Ratio of the shear thickness, $T_s$, to the membrane thickness of the shell, $T$. The default value is for a homogeneous shell. (Real > 0.0; Default = .833333) |
| NSM | Nonstructural mass per unit area. (Real) |
| Z1, Z2, MID4 | Not used. |
Remarks:
- The continuation is optional.
- Mindlin-Reissner theory of plates (first-order shear plate theory) will be used if MID2 ≥ 1. Kirchhoff or classical plate theory (no shear flexibility) is not supported.
- The results of leaving an MID field blank (or MID2 = -1) are:
- MID1 - No membrane stiffness
- MID2 - No bending or transverse shear stiffness
- MID3 - MID2 used to define transverse shear material properties