#
MohrCoulomb
Define a Mohr-Coulomb material.
#
Parameters
- name : str
- String naming the material.
- color : Color
- Material appearance. color= Color(r=79,g=180,b=63)
- 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
- c : float
- Cohesion in kPa
- phi : float
- Friction angle in degrees
- flow_rule : str
- flow_rule = 'associated' or 'nonassociated'
- psi : float
- Dilation angle
- dilation_cap : str
- dilation_cap = 'no', 'volumetric', 'deviatoric'
- ev_cr : float
- Critical volumetric strain
- es_cr : float
- Critical shear strain
- 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 : boolean
- Apply softening.
- phi_residual : float
- Residual shear strength.
- e_cr1 : float
- Critical plastic strain peak.
- e_cr2 : float
- Critical plastic strain residual.
- 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).
#
Examples
i = 0
model2d.add_rectangle([i,0],[i+1,2])
Face = model2d.select(p0=[i+0.5,1],types='face')
MC = prj.MohrCoulomb(name='MC Soil',
color= Color(r=79,g=180,b=63),
drainage = 'drained_undrained',
cavitation_cutoff = 'yes',
pcav = 100,
E= 50,
nu= 0.2,
c = 5,
phi = 25,
flow_rule = 'non_associated'
psi = 0,
dilation_cap= 'no',
ev_cr= 0.01,
es_cr= 0.01,
gamma_dry= 18,
gamma_sat= 20,
tension_cutoff= 'yes',
sigma_t = 0,
softening= 'yes',
phi_residual= 20,
e_cr1=0.01,
e_cr2=0.012,
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,
)
model2d.set_solid(shapes=Face,material=MC)