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laws:loash
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LOASH
Description
Constitutive law for loading plane membrane and shell elements:
The model
This law is used for mechanical analysis of membranes and shells, loaded by uniform pressure and shear, normal and tangential to the mid line $\xi$ at any moment.
Loading can be driven either by force multiplicator (MULTF) or displacement multiplicator (MULTD).
Files
Prepro: LLOASH.F
Availability
| Plane stress state | NO |
| Plane strain state | NO |
| Axisymmetric state | NO |
| 3D state | NO |
| Generalized plane state | YES |
Input file
Parameters defining the type of constitutive law
| Line 1 (2I5, 60A1) | |
|---|---|
| IL | Law number |
| ITYPE | 96 |
| COMMENT | Any comment (up to 60 characters) that will be reproduced on the output listing |
Real parameters
| Line 1 (2G10.0) | |
|---|---|
| PRESSF | Pressure $p_o$ (which will be multiplied by MULTF) |
| TAUF | Shear $\tau_o$ (which will be multiplied by MULTF) |
| Line 2 (2G10.0) | |
| PRESS | Pressure $p_o$ (which will be multiplied by MULTD) |
| TAUD | Shear $\tau_o$ (which will be multiplied by MULTD) |
Stresses
Number of stresses
2
Meaning
| SIG(1) | = $p$ : Pressure (= $p_o$ * MULT) |
| > 0 according with $\eta$-coordinate of shell (membrane) | |
| SIG(2) | = $\tau$ : Shear (= $\tau_o$ * MULT) |
| > 0 according with $\xi$-coordinate of shell (membrane) |
State variables
Number of state variables
1
List of state variables
| Q(1) | Without any meaning |
laws/loash.txt · Last modified: 2020/08/25 15:46 (external edit)
