Hardening Soil model with small strain stiffness - Zace Services Ltd.

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HS model: shear mechanism Duncan-Chang model as the origin for shear mechanism 250 q f q [kPa] 200 150 100 50 0 E 50 ½ q f 1 1 M-C limit 0 0.01 0.02 0.03 0.04 0.05 eps-1 E ur Andrzej Truty ZACE Services Hardening Soil model with small strain stiffness
Stiffness stress dependency Remarks E ur = E ref ur E 50 = E ref 50 ( σ ∗ 3 + c cotφ σ ref + c cotφ ( σ ∗ 3 + c cotφ σ ref + c cotφ ) m ) m 1 Stiffness degrades with decreasing σ 3 up to σ 3 = σ L (by default we assume σ L =10 kPa) Andrzej Truty ZACE Services Hardening Soil model with small strain stiffness
Page 1 and 2: Hardening Soil model with small str
Page 3 and 4: Introduction HS model was initially
Page 5 and 6: Notion of tangent and secant stiffn
Page 7 and 8: Notion of treshold shear strain γ
Page 9: HS model: general concept Double ha
Page 13 and 14: How does it work N-1 N N+1 plot fr
Page 15 and 16: Setting initial state variables: γ
Page 17 and 18: Setting initial state variables: γ
Page 19 and 20: Material properties Parameter Unit
Page 21 and 22: Example: triaxial test on dense Hos
Page 23 and 24: Example: triaxial test on dense Hos
Page 25 and 26: Estimation of material properties:
Page 37 and 38: Excavation in Berlin Sand: FE discr
Page 39 and 40: Excavation in Berlin Sand: Wall def
Page 41 and 42: Excavation in Berlin Sand: Soil def

Hardening Soil model with small strain stiffness - Zace Services Ltd.

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