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laws:fczml
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FCZML
Description
Constitutive law for bilinear Crisfield’s cohesive zone model coupled with fatigue
The model
The model is a bilinear Cohesive Zone Model of Crisfield. The normal and shear stresses are computed.
Files
Prepro: LFCZML.F
Lagamine: FCZML.F, FCZML3.F
Availability
| Plane stress state | YES |
| Plane strain state | YES |
| Axisymmetric state | NO |
| 3D state | YES |
| Generalized plane state | NO |
Input file
Parameters defining the type of constitutive law
| Line 1 (2I5, 60A1) | |
|---|---|
| IL | Law number |
| ITYPE | 297 |
| COMMENT | Any comment (up to 60 characters) that will be reproduced on the output listing. |
Real parameters
| Line 1 (9G10.0) | |
|---|---|
| SIGMAX | maximal cohesive normal stress |
| DN0 | normal separation when the normal stress is maximal |
| DNC | normal separation when the normal stress is null |
| TAUMAX | maximum cohesive shear stress |
| DT0 | shear separation when the shear stress is maximal |
| DTC | normal separation when the normal stress is null |
| ALPHA | material parameters |
| ZETAN | Normal cohesive viscosity parameters |
| ZETAT | Shear cohesive viscosity parameters |
Stresses
Number of stresses
2 (2D)
3 (3D)
Meaning
2D
| SIG(1) | shear stress |
| SIG(2) | normal stress |
3D
| SIG(1) | normal stress |
| SIG(2) | shear stress in direction p |
| SIG(3) | shear stress in direction s |
State variables
Number of state variables
2
List of state variables
| Q(1) | IREG: 0: cohesive behaviour 1: crack behaviour (stress null and no stiffness) |
| Q(2) | DK: monotonic damage evaluation |
laws/fczml.txt · Last modified: 2020/08/25 15:46 (external edit)
