# AUS

Define an AUS material.

name : str

String naming the material.

color : Color

Material appearance. color= Color(r=139,g=131,b=166)

Eu : float

Undrained Young's modulus, in MPa.

ec50 : float

Axial strain halfway to failure in compression.

ee50 : float

Axial strain halfway to failure in extension.

suc : float

Undrained shear strength in compression.

sue : float

Undrained shear strength in extension.

gamma_dry : float

Dry unit weight in kN/m^3

gamma_sat : float

Saturated unit weight in kN/m^3

tension_cutoff : str

Apply tension cutoff. tension_cutoff = 'yes' or 'no'

sigma_t : str

Tensile cutoff stress, in kPa.

softening : str

Apply softening. softening = 'yes' or 'no'

suc_residual : float

Residual undrained shear strength in compression, in kPa.

e_suc_cr1 : float

Critical plastic strain at undrained shear peak strength in compression.

e_suc_cr2 : float

Critical plastic strain at undrained shear residual strength in compression.

sue_residual : float

Residual undrained shear strength in extension, in kPa.

e_sue_cr1 : float

Critical plastic strain at undrained shear peak strength in extension.

e_sue_cr2 : float

Critical plastic strain at undrained shear residual strength in compression.

K0 : float

Earth pressure coefficient at rest.

hydraulic_conductivity_option : str

hydraulic_conductivity_option = 'isotropic' or 'anisotropic'

K : float

Hydraulic conductivity, in m/day.

Kx : float

Hydraulic conductivity in x, in m/day.

Ky : float

Hydraulic conductivity in y, in m/day.

Kz : float

Hydraulic conductivity in z, in m/day.

hydraulic_model : str

hydraulic_model = 'basic' or 'van_genuchten'

e : float

Void ratio.

alpha : float

Model parameter related to the air entry pressure.

n : float

Model parameter related to the rate at which water is extracted from the soil once the air entry pressure has been exceeded.

Sr : float

Residual degree of saturation (may be slightly greater than 0).

Ss : float

Fraction of water filled pores at full saturation (may be slightly less than 1).

reducible_strength : str

Apply reducible strength. reducible_strength = 'yes' or 'no'

i = 6
model2d.add_rectangle([i,0],[i+1,2])
Face = model2d.select(p0=[i+0.5,1],types='face')
AUSMaterial = prj.AUS(name='AUSMaterial',
color=Color(r=187,g=132,b=78),
Eu=30,
ec50=0.005,
ee50=0.02,
suc=30,
sue=18,
tension_cutoff='no',
sigma_t=0,
softening='yes',
suc_residual= 25,
e_suc_cr1=0.01,
e_suc_cr2=0.012,
sue_residual=15,
e_sue_cr1=0.04,
e_sue_cr2=0.05,
gamma_dry=18,
gamma_sat=20,
K0=0.58,
sigma_0= 0,
hydraulic_conductivity_option='anisotropic',
K=0.001,
Kx=0.001,
Ky=0.001,
Kz=0.001,
hydraulic_model='van_genuchten',
e=1,
alpha=2,
n=2,
Sr=0,
Ss=1,
reducible_strength='yes',
)
model2d.set_solid(shapes=Face,material=AUSMaterial)