Implementation (umat.for) of a model published in Mugele, L., Stutz, H. H. and Mašín, D. (2024). Generalized intergranular strain concept and its application to hypoplastic models. Computers and Geotechnics 173, September 2024, 106480.
Download package of Clay and Sand hypoplasticity UMAT and Plaxis implementations, including pre-compiled UMAT-Plaxis interface.
Download package of clay barodesy with intergranular strain and strength reduction. Including UMAT and Plaxis DLL
Simulation code related to paper "Kadlíček, T. and Mašín, D. (2020). The strength reduction method in clay hypoplasticity. Computers and Geotechnics (in print)".
Setup file for GroundVib software
Download package of ISA cyclic hypoplasticity model. Contains umats and example Abaqus input files. Umats (ISA+sand hypoplasticity) allow to switch between ISA and classical intergranular strain concept.
Simple Matlab element test driver running elasto-plastic and hypoplastic models. Programmed in 2012 by Claudio Tamagnini and David Mašín for the ALERT Olek Zienkiewicz Course.
Download link for FLAC3D implementation of SANISAND model.
Contains journal publication, associated umat for Abaqus and README.txt explaining model parameters and state variables.
Download link to Plaxis PM4Sand dll
Download link for additional references, software manuals and simulation codes of PM4Silt model maintained by the model developers from University of California at Davis.
Download link for additional references, software manuals and simulation codes of PM4Sand model maintained by the model developers from University of California at Davis.
Package contains Plaxis UDSM (dll files only), package documentation in pdf and related journal publication and PhD thesis pdf files. Authors are
researchers from the Graz University of Technology.
Download package of sand and clay hypoplasticity for GeoSlope SIGMA/W finite element code. Based on umat, comes along with the source code.
Download package of barodesy model. Contains ABAQUS umat (source code), Plaxis UDSM (dll files only, not source code), package documentation, related journal publications, Abaqus and Plaxis examples.
Download package of Triax element test sofware by D. Mašín and co-workers.
Download package contains two umats, one for basic hypoplasticity (von Wolffersdorff, 1996) and the other for hypoplasticity with small strain stiffness (Niemunis and Herle, 1997).
Interface between umat (Abaqus/Standard) and vumat (Abaqus/Explicit) user defined model standards by Bienen et al. (2014).
Download package of a Incremental Driver single element program by Niemunis (2007, 2014) for running element tests using constitutive models implemented in umat format.
UMAT and Plaxis implementations of SANISAND constitutive model by Dafalias and Manzari (2004).
Download Package of frictional interface model by Stutz et al. (2016, 2017) for granular soils based on Hypoplasticity including interface between UMAT and FRIC ABAQUS standards.
Clay and Sand hypoplasticity UMAT and Plaxis implementations, including UMAT-Plaxis interface
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Download package of Clay and Sand hypoplasticity UMAT and Plaxis implementations, including pre-compiled UMAT-Plaxis interface.
Supporting Organisations
Recent posts
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hypoplastic interface 11.12.2024
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Triaxial Test Driver SANISAND 30.10.2024
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REQUEST FOR EXPRESSIONS OF INTEREST (REOI) FOR PROJECT IN CONSTITUTIVE MODELLING 23.10.2024
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Programme of the ALERT Olek Zienkiewicz school on Constitutive Modelling of Geomaterials, February 3 to 7, 2025, Prague, Czech Republic 11.10.2024
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Connecting remote sensors to the Plaxis FEM 3D using python 26.7.2024
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Intergranular Strain Extensions 16.7.2024
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Abaqus Hypoplasticity Primary Variable Is Not Available 1.7.2024
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Vumat to calculate excess pore in Coupled Eulerian-Lagrangian ABAQUS 1.7.2024
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Drucker Prager Cap Hardening Model 20.6.2024
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Soil model for sand under drained cyclic loading 15.6.2024
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In Abaqus how do we use *DLOAD for defining both user-defined pressure and body force simultaneously? 15.6.2024
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Issue in applying SANISAND04 UMAT to Boundary-Value-Problem 31.5.2024
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