/MAT/LAW20 (BIMAT)

Format

(1)	(2)	(3)	(6)	(7)	(8)
/MAT/LAW20/`mat_ID` or /MAT/BIMAT/`mat_ID`
`mat_title`
Blank Line
`mat_ID`₁	`mat_ID`₂		`IC`₁	`IC`₂	`I`_DISCRETE
$α_{1}$		$α_{2}$

Definition

Field	Contents	SI Unit Example
`mat_ID`	Material identifier (Integer, maximum 10 digits)
`mat_title`	Material title (Character, maximum 100 characters)
`mat_ID`₁	First material identifier (ALE or Euler material) (Integer)
`mat_ID`₂	Second material identifier (ALE or Euler material) (Integer)
`IC`₁	Incoming `mat_ID`₁ control flag (Integer)
`IC`₂	Incoming `mat_ID`₂ control flag (Integer)
`I`_DISCRETE	Discrete filling flag (Integer)
$α_{1}$	Ratio of first material (Real)
$α_{2}$	Ratio of second material (Real)

Example (Steel)

#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/LAW20/1
steel (unit: g_cm_mus)
#        BLANK CARD                     

#  mat_ID1   mat_ID2                                     IC1       IC2 Idiscrete
         8         9                                       0         0         0
#             Alpha1              Alpha2
                0.82                0.18
/ALE/MAT/1
#     Modif. factor.
                   0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/HYD_JCOOK/8
steel
#              RHO_I               RHO_O
           7.8899999                   0
#                 E                   nu
           2.0999999           .30000001
#                  A                   B                   n              epsmax              sigmax
                .011              .00275           .36000001                   0                   0
#               Pmin
               1E-10
#                  C           EPS_DOT_0                   M               Tmelt                Tmax
                .022                1E-6                   1                1811                2000
#              RHOCP
        3.5699999E-5
/EOS/POLYNOMIAL/8
steel
#                 C0                  C1                  C2                  C3
                   0           1.6900001           3.0999999                   0
#                 C4                  C5                  E0                 Psh               RHO_0
                1.83                1.83                   0                   0                   0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/MAT/HYD_JCOOK/9
tungstene
#              RHO_I               RHO_O
                17.6                   0
#                 E                   nu
           3.5999999           .30000001
#                  A                   B                   n              epsmax              sigmax
              .01506              .00177                 .12                   0                   0
#               Pmin
               1E-10
#                  C           EPS_DOT_0                   M               Tmelt                Tmax
          .016000001                1E-6                   1                3400                3400
#              RHOCP
             2.36E-5
/EOS/POLYNOMIAL/9
tungstene
#                 C0                  C1                  C2                  C3
                   0           2.8199999                   2               -1.37
#                 C4                  C5                  E0                 Psh               RHO_0
                1.54                1.54                   0                   0                   0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
#ENDDATA

Comments

Compatible with 2D Analysis only (/ANALY). Material must be defined as an ALE (/ALE/MAT) or EULER (/EULER/MAT) material.
$α_{1}$ and $α_{2}$ are initial percentages of mat_ID₁ and mat_ID₂.
Material identifiers mat_ID₁ or mat_ID₂ cannot be used with material LAW11.
Only material type LAW20 can be frontier to the material LAW20.
Activating flag for incoming material control (IC_i = 1) enables filtering incoming material mat_ID_i.
Activating flag for discrete filling (I_DISCRETE = 1) enables old initial filling (version 10.0.3 and prior) for all Bimaterial laws in the input file. Partial filling for other bimaterial laws is not taken into account.