*MAT_003 (PLASTIC_KINEMATIC)
LS-DYNA Input Interface KeywordDefines an isotropic, elasto-plastic material with s Cowper-Symonds strain rate model.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
*MAT_003 or *MAT_PLASTIC_KINEMATIC | |||||||
mat_ID | E | SIGY | ETAN | CHARD | |||
SRC | SRP | EPS_F | VP |
Definition
Field | Contents | SI Unit Example |
---|---|---|
mat_ID | Material
identifier. (Integer) |
|
Initial
density. (Real) |
||
E | Young’s
modulus. (Real) |
|
Poisson’s ratio. (Real) |
||
SIGY | Yield stress. (Real) |
|
ETAN | Plastic slope. (Real) |
|
CHARD | Hardening coefficient. (Real) |
|
SRC | Cowper – Symonds strain rate
dependency coefficient. (Real) |
|
SRP | Cowper – Symonds strain rate
dependency exponent. (Real) |
|
EPS_F | Failure plastic
strain. (Real) |
|
VP | Rate effects formulation.
(Integer) |
Comments
- This keyword maps to /MAT/LAW44 (COWPER).
- The option “_TITLE” can be added to the end of this keyword. When “_TITLE” is included, an extra 80 characters long line is added after the keyword input line which allows an entity title to be defined.