# MultiMohrCoulomb

Define a Multi Mohr-Coulomb material.

name : str

String naming the material.

color : Color

Material appearance. color= rgb(27,152,86)

drainage : str

Material drainage type. drainage = 'drained_undrained', 'always_drained', 'non_porous'

cavitation_cutoff : str

cavitation_cutoff = 'no' or 'yes'

pcav : float

Cavitation pressure in kPa.

E : float

Young's Modulus, in MPa.

nu : float

Poisson's ratio.

no_surfaces : int

Number of surfaces up to 5.

c1 : float

Cohesion for the first surface.

phi1 : float

Friction angle in degrees for the first surface.

c2 : float

Cohesion for the second surface.

phi2 : float

Friction angle in degrees for the second surface.

c3 : float

Cohesion for the third surface.

phi3 : float

Friction angle in degrees for the third surface.

c4 : float

Cohesion for the fourth surface.

phi4 : float

Friction angle in degrees for the fourth surface.

c5 : float

Cohesion for the fifth surface.

phi5 : float

Friction angle in degrees for the fifth surface.

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 : float

Tensile cutoff stress, in kPa.

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 = 11
model2d.add_rectangle([i,0],[i+1,2])
Face = model2d.select(p0=[i+0.5,1],types='face')
MMCMaterial = prj.MultiMohrCoulomb(name='MMCMaterial',
color= rgb(27,152,86),
drainage = 'drained_undrained',
cavitation_cutoff = True,
pcav = 100,
E= 30,
nu= 0.25,
no_surfaces=2,
c1= 5,
phi1= 35,
c2= 15,
phi2=25,
c3=25,
phi3=20,
c4=40,
phi4=15,
c5=60,
phi5=10,
gamma_dry= 18,
gamma_sat= 20,
tension_cutoff= True,
sigma_t=0,
K0=0.001,
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=MMCMaterial)