MCOHED
Bulk Data Entry Defines the material properties for cohesive materials.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
MCOHED | MID | EX | EY | EZ | SFC | VED | MXDMG | ||
DMGINIID | DMGEVOID |
Example
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
MCOHED | 2 | 9000. | 3000. | 3000. | -1.0 | 1.0e-3 | 0.99 | ||
20 | 23 |
Definitions
Field | Contents | SI Unit Example |
---|---|---|
MID | Material
identification number. No default (Integer > 0) |
|
EX, EY, EZ | Elastic moduli in x-,
y- and z-directions in the material coordinate system. No default (Real) |
|
SFC | Stiffening factor in compression.
Default = 1.0 |
|
VED | Factor for viscous
energy dissipation. Default = 0.0 (Real > 0.0) |
|
MXDMG | Maximum damage index,
above which the cohesive element is excluded from
analysis. Default = 1.0 (Real ≥ 0.0) |
|
DMGINIID | Damage initiation card
ID. No default (Integer > 0) |
|
DMGEVOID | Damage evolution card
ID. No default (Integer > 0) |
Comments
- The material identification number should be unique for all MAT1, MAT2, MAT3, MAT8, MAT9, MGASK, MCOHE, MCOHED entries.
- In some cases, snap-back phenomena could appear in numerical models with cohesive elements. VED can be used to stabilize the solution.