Table of Contents
PLANI
Description
Plane membrane.
The element is defined by 4 nodes.
Element type: 5
Implemented by: I. Bertarini (1986)
Files
Prepro: PLANIA.F
Lagamine: PLANIB.F
Input file
| Title (A5) | |
|---|---|
| TITLE | “PLANI” in columns 1 to 5 |
| Control data (2I5, 2G10.0) | |
| NELEM | Number of elements |
| MDIRW | Gravity direction: 0 → No gravity ± 1 → Gravity in the X direction ± 2 → Gravity in the Y direction ± 3 → Gravity in the Z direction |
| SPEWG | Volumic weight |
| SPEMA | Volumic mass |
| Definition of the elements (I5, G10.0, I5/4I5) | |
| LMATE | Material |
| PRESO | Uniform stress |
| MDIRL | Direction of the stress 0 → No stress ± 1 → Stress in the X direction ± 2 → Stress in the Y direction ± 3 → Stress in the Z direction |
| NODES(4) | List of nodes |
Results
The mechanical Cauchy stresses are ordered as: $\sigma_x, \sigma_y, \tau_{xy}, \sigma_z$. These stresses are expressed in the local axis system:
X ⁄⁄ ξ (isoparametric axis)
Y ⊥ X in the plane of PLANI
Z ⊥ (X,Y)