
Begin property specification for material MAT_100_IPS
  ## Materail Units: Inch, Pound, Seconds

  density=0.000259

  Begin parameters for model elastic
     youngs modulus=1e+07
     poissons ratio=0.33
  End parameters for model elastic

  Begin parameters for model elastic_plastic
    youngs modulus = 10.0e6      
    poissons ratio = 0.33
    yield stress = 45.0e3
    beta = 1.0      
    hardening  modulus = 28695
  End parameters for model elastic_plastic

  Begin Parameters For Model Ep_Power_Hard
     youngs modulus = 1e+7
     poissons ratio=0.33
     yield stress = 45.0e3
     hardening constant = 1.0e4
     hardening exponent = 0.25
     luders strain = 0.002
  End Parameters For Model Ep_Power_Hard

End property specification for material MAT_100_IPS

Begin property specification for material MAT_100_CGS
  ## Material Units: Centimeter, Gram, Seconds

  density=7.887

  Begin parameters for model elastic
     youngs modulus=2.07e+12
     poissons ratio=0.3
  End parameters for model elastic
   
   begin parameters for model elastic_plastic
      beta = 1.0
      hardening modulus = 5.3e+09
      poissons ratio = 0.3
      yield stress =   3.87E+09
      youngs modulus = 2.07E+12
   end parameters for model elastic_plastic
   
   begin parameters for model plane_stress_rate_plasticity
      youngs modulus = 2.07E+12
      poissons ratio = 0.30E+00
      yield stress =   3.87E+09
      hardening function = yield_1
      rate function = rate_1
   end parameters for model plane_stress_rate_plasticity
   
End property specification for material MAT_100_CGS

begin definition for function yield_1
   # These are numbers for strain rate 0.001
   type is piecewise linear
   begin values
      0.0      0.0
      2.0E-03  5.40E+08
      5.0E-03  7.70E+08
      2.0E-02  1.30E+09
      5.0E-02  1.88E+09
      1.0E-01  2.46E+09
      1.5E-01  2.88E+09
      2.5E-01  3.52E+09
      5.0E-01  4.61E+09
   end values
end definition for function yield_1

begin definition for function yield_2
   # These are numbers for strain rate 0.1
   type is piecewise linear
   begin values
      0.0      0.0
      2.0E-03  5.80E+08
      5.0E-03  8.20E+08
      2.0E-02  1.41E+09
      5.0E-02  2.02E+09
      1.0E-01  2.65E+09
      1.5E-01  3.10E+09
      2.5E-01  3.78E+09
      5.0E-01  4.96E+09
   end values
end definition for function yield_2

begin definition for function yield_3
   # These are numbers for strain rate 3000
   type is piecewise linear
   begin values
      0.0      0.0
      2.0E-03  6.70E+08
      5.0E-03  9.50E+08
      2.0E-02  1.64E+09
      5.0E-02  2.34E+09
      1.0E-01  3.07E+09
      1.5E-01  3.60E+09
      2.5E-01  4.39E+09
      5.0E-01  5.71E+09
   end values
end definition for function yield_3

begin definition for function rate_1
   type is piecewise linear
   begin values
      1.0E-03   1.0
      1.0E-01   1.08
      3.0E+03   1.25
   end values
end definition for function rate_1
