Numerical Modeling: An Efficient Tool for Analyzing the Behavior of Constructions - Multiscale Geomechanics: From Soil to Engineering Projects - page 241

r Degree of friction mobilization

r ela ,r hys ,r mob Parameters of the elastoplastic model

s Stress deviator tensor

S u

Undrained shear strength (σ 1 − σ 3 )/2 or τ max

T

Superficial tension

U c Uniformity coefficient d 60 /d 10

W Work

w L Liquid limit

w P Plastic limit

Greek alphabet

α Biot's parameter

α Hardening variable (generic),

specific to each yield function

β Plastic compressibility modulus

γ Distortion

γ ela ,γ hys ,γ mob Different plastic behavior domains

γ tv Volume variation threshold

ε Strain tensor

ε Deviatoric strain tensor

ε e

Reversible strain rate tensor

ε p Plastic strain rate tensor

ε vp

Viscoplastic strain rate tensor

ε v Volumetric strain

ε v

Plastic volumetric strain

η

Hardening variables common to several mechanisms

λ Compression index in ( e − ln p ) plane

λ Lamé's coefficient

λ p

Plastic multiplyer

µ,G max Lamé's coefficient, elastic shear modulus

π max
c

Maximum capillary stress

σ Cauchy total stress tensor

σ

Cauchy effective stress tensor

σ ∗ Cauchy net stress tensor

σ c0 Initial critical stress

σ c Critical stress

σ I Major principal stress

σ 1 ,σ 2 ,σ 3 , Principal stresses

σ nn Normal stress to plane with normal n