power-mohr

bulk f

elastic bulk modulus, K

cohesion f

cohesion, c

constant-1 f

power-law constant, A₁

constant-2 f

power-law constant, A₂

dilation f

dilation angle, ψ

exponent-1 f

power-law exponent, n₁

exponent-2 f

power-law exponent, n₂

friction f

angle of internal friction, ϕ

poisson f

Poisson’s ratio, v

shear f

elastic shear modulus, G

stress-reference-1 f

reference stress, \(\sigma^{ref}_1\)

stress-reference-2 f

reference stress, \(\sigma^{ref}_2\)

tension f

tension limit, σt. The default is 0.0.

young f

Young’s modulus, E

flag-brittle b

[advanced] If true, the tension limit is set to 0 in the event of tensile failure. The default is false.

Notes:

• Only one of the two options is required to define the elasticity: bulk modulus K and shear modulus G, or Young’s modulus E and Poisson’s ratio v.
• The creep behavior is triggered by deviatoric stress, while the volumetric behavior does not consider creep.
• The tension cut-off is σt = min (σt, c/tanϕ).

Footnotes

Advanced properties have default values and do not require specification for simpler applications of the model.