The PM4Sand and PM4Silt models are stress-ratio controlled, critical state compatible, bounding surface plasticity models developed for geotechnical earthquake engineering applications.
A PhD-level course on hypoplastic constitutive modelling intended for both academia and practitioners.
Multilaminate constitutive models are based on the concept that the material behaviour can be formulated on a number of so-called integration planes with varying orientation. In addition to other features, the model predicts anisotropic soil stiffness at small strains.
Barodesy is a constitutive model for granular media and does not use standard notations of elasto-plasticity, e.g. yield function, flow rule or plastic potential.
SANISAND is an advanced elasto-plastic model based on a concept of rotational hardening incorporating the effects of fabric-dilatancy.
Sand hypoplastic model is an advanced incrementally non-linear constitutive model for sand, an outcome of an extensive research at Karlsruhe University in 1990's.
Clay hypoplasticity is an advanced incrementally non-linear constitutive model based on critical state soil mechanics developed specifically for simulation of fine-grained materials.
Supporting Organisations
Recent posts
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Animating Soil Mechanics 3.7.2026
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GeoXPM 19.6.2026
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Autumn School in Soil Modelling at NTNU 16.6.2026
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Viscohypoplastic bentonite (VIBE) model 28.5.2026
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Problem in “Hoek Brown Softening” Model 30.4.2026
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XFEM Hydraulic Fracturing in Abaqus – Pore Pressure Not Updating & Extremely Small Time Steps 28.4.2026
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Correct my Plaxis FEM simulation in foundation bearing capacity results 3.4.2026
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mohr coulomb 2D yield surface vs 3D mohr coulomb yield surface 28.2.2026
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Problem with GeoStudio (Seepage) software 16.2.2026
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Prague Geotechnical Days 2026 3.2.2026
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Postdoctoral position at COFS, UWA 28.7.2025
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Hypoplasticity clay in ABAQUS 23.7.2025
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