MATHF
Bulk Data Entry Defines the material properties in a one-step stamping simulation.
Format
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATHF | MID | E | NU | Y | K | n | EPS0 | ||
| R0 | R45 | R90 | TABLEID |
Example
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
|---|---|---|---|---|---|---|---|---|---|
| MATHF | 17 | 21.0E4 | 0.3 | 184.297 | 549.03 | 0.22 | 0.007 | ||
| 1.6 | 1.6 | 1.6 |
Definitions
| Field | Contents | SI Unit Example |
|---|---|---|
| MID | Unique material
identification number. No default (Integer > 0) |
|
| E | Young's Modulus. No default (Real) |
|
| NU | Poisson's ratio. Default = blank (-1.0 < Real < 0.5 or blank) |
|
| Y | Yield stress. No default (Real) |
|
| K | Strength coefficient. No default (Real or blank) |
|
| n | Strain hardening
component. No default (Real or blank) |
|
| EPS0 | Pre-strain
coefficient. No default (Real or blank) |
|
| R0, R45, R90 | Lankford
coefficients. No default (Real) |
|
| TABLEID | Table ID for stress-strain
curve using a TABLES1
entry. No default (Integer > 0) |
Comments
- This entry is only valid with a @ HyperForm statement in the first line of the input file.
- The TABLEID and the corresponding curve are required only when material data is specified with a stress-strain curve. For such case, material parameter such as K, n and EPS0 are extracted from the stress strain curve.