Tresca
Define a Tresca material.
Parameters
- name : str
- String naming the material.
- color : Color
- Material appearance. color= rgb(195,105,54)
- Eu : float
- Undrained Young's modulus, in MPa.
- cu : float
- Undrained shear strength, in kPa.
- 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.
- 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 = 1
model2d.add_rectangle([i,0],[i+1,2])
Face = model2d.select(p0=[i+0.5,1],types='face')
TrescaMaterial = prj.Tresca(name='Tresca Soil',
color= Color(r=195,g=105,b=54),
Eu = 30,
cu = 30,
gamma_dry= 18,
gamma_sat= 20,
tension_cutoff= 'yes',
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,
)
model2d.set_solid(shapes=Face,material=TrescaMaterial)