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.
Software
Download Package of Charles University Implementation of High Cycle Accumulation Model

Views 2,881
Download package of Clay and Sand hypoplasticity UMAT and Plaxis implementations, including pre-compiled UMAT-Plaxis interface.
Barodesy for clay including intergranular strain and strength reduction (UMAT and Plaxis DLL)

Views 792
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)".
GroundVib.setup.web.exe
Views 2,443
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.
Download Package of Matlab Driver

Views 3,718
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.
SANISAND for FLAC3D Download

Views 6,862
Download link for FLAC3D implementation of SANISAND model.
PM4Sand for Plaxis Download

Views 2,982
Download link to Plaxis PM4Sand dll
PM4Silt FLAC Download and documentation

Views 617
Download link for additional references, software manuals and simulation codes of PM4Silt model maintained by the model developers from University of California at Davis.
PM4Sand FLAC Download and documentation

Views 1,318
Download link for additional references, software manuals and simulation codes of PM4Sand model maintained by the model developers from University of California at Davis.
Download Package of Multilaminate Model for Plaxis

Views 1,240
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 hypoplasticity (sand and clay) for GeoSlope SIGMA/W

Views 1,800
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 – ABAQUS umat (source code) and Plaxis dll

Views 2,265
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 Driver

Views 1,875
Download package of Triax element test sofware by D. Mašín and co-workers.
UMAT Implementation of Sand Hypoplasticity by UIBK

Views 6,221
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).

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Interface between umat (Abaqus/Standard) and vumat (Abaqus/Explicit) user defined model standards by Bienen et al. (2014).
Download Package of Incremental Driver

Views 1,991
Download package of a Incremental Driver single element program by Niemunis (2007, 2014) for running element tests using constitutive models implemented in umat format.
SANISAND Abaqus UMAT and Plaxis implementations

Views 9,700
UMAT and Plaxis implementations of SANISAND constitutive model by Dafalias and Manzari (2004).
Download Package for Hypoplastic interface model and UMAT – FRIC interface

Views 2,157
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

Views 18,582
Download package of Clay and Sand hypoplasticity UMAT and Plaxis implementations, including pre-compiled UMAT-Plaxis interface.
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