/EOS/MURNAGHAN
Block Format Keyword Describes the Murnaghan equation of state.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
---|---|---|---|---|---|---|---|---|---|
/EOS/MURNAGHAN/mat_ID/unit_ID | |||||||||
eos_title | |||||||||
K0 | K1 | P0 | Psh |
Definitions
Field | Contents | SI Unit Example |
---|---|---|
mat_ID | Material identifier. (Integer, maximum 10 digits) |
|
unit_ID | Unit Identifier. (Integer, maximum 10 digits) |
|
eos_title | EOS title. (Character, maximum 100 characters) |
|
K0 | Material parameter. (Real) |
|
K1 | Material parameter. (Real) |
|
P0 | Initial pressure. (Real) |
|
Psh | Pressure shift. (Real) |
|
Reference density. Default = material density (Real) |
Example
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/UNIT/1
unit for mat
g mm ms
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/HYDPLA/7
IDEAL-GAS
# RHO_I RHO_0
1.22e-3 1.22e-3
# E nu
0 0
# a b n eps_max sigma_max
1E30 0 0 0 0
# Pmin
0
/EOS/MURNAGHAN/7
NaCl
# K0 K1 P0 PSH RHO0
24.0 5.390 1.0 0 2.165e-3
/ALE/MAT/7
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#enddata
Comments
- This equation of state is also known as Tait
Equation of State.
(1) Where K0 and K1 are material parameters.
- Equations of state are used by
Radioss to compute the hydrodynamic pressure and are
compatible with the material laws:
- /MAT/LAW3 (HYDPLA)
- /MAT/LAW4 (HYD_JCOOK)
- /MAT/LAW6 (HYDRO or HYD_VISC)
- /MAT/LAW10 (DPRAG1)
- /MAT/LAW12 (3D_COMP)
- /MAT/LAW49 (STEINB)
- /MAT/LAW102 (DPRAG2)
- /MAT/LAW103 (HENSEL-SPITTEL)