Hi, I just came across some problems with the implementation of the “Sand Hypoplasticity Model” in Plaxis. I wanted to to perform a simulation of an oedometer test on a […]
Hi all, I have been trying to code the PM4SAND model for several months, but I faced some problems. I was wondering if there is anyone who worked with this […]
Hi there, I’ve used successfully used SANISAND .dll with Plaxis 2016, but after switching to 2017 and now 2018 the .dll seems not to work (the parameter fields appear without […]
On behalf of the team of developers I am happy to announce that, after more than four years of development and testing, ExCalibre has just been launched. ExCalibre is a […]
Sir, As a beginner of FRIC I am facing some difficulties to implement it. The downloaded FRIC code has been added to my pile soil friction model and trying to […]
The equations for a vertical cut in cohesive material are given in several publications including Heyman (1973): The stability of a vertical cut (see attachment Equations1.jpeg) and Verruijt (2001) Soil […]
1. Download install exe (32 or 64 bit) from https://cygwin.com/install.html 2. Choose a mirror site / click Next and select all packages you need for compiling: Type: “gcc” into search […]
A PhD-level course on hypoplastic constitutive modelling intended for both academia and practitioners.
Hypoplastic Interface Model: Virtual Shear Zone Thickness and Surface Rougness Coefficient
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Hello, I want to use Hypoplastic Interface (Fric Subroutine) in my ABAQUS contact models. However, I don’t know how I can determine Virtual Shear Zone Thickness. It is the Parameter […]
Multilaminate model (Schädlich, Schweiger and coworkers) is now available for download as Plaxis UsrMod. Thanks to Helmut Schweiger and coworkers from Graz University of Technology, Institute of Soil Mechanics, Foundation Engineering and Computational […]
Hypoplasticity (sand and clay models) is now available for GeoSlope SIGMA/W finite element code in a form of user defined Add-In. The implementation is based on ABAQUS umats and it […]
Dear colleagues, I want to ask your help — does anyone know where we can find all the test data from the old Velacs Project? If so, that would be […]
Hello, I am trying to implement the dll for hypoplasticity in Plaxis 3D. It runs through both the Initial Phase and a Nil Step. However, when it calculates about 20 […]
Dear all I am trying to calibrate the HP for sand, and I have quite comprehensive data. but they are not totally consistent with each other . we have the […]
I would like to derive material parameters based for a simulation which will implement the hypoplastic material model based on the following information: • Heavily overconsolidated • Very dense, fine […]
Did you know about history of SoilModels? Here you can download the original announcement, written during September 2007 meeting of ALERT association in Aussois, France and published in the International Journal […]
SoilModels News – Barodesy, Incremental Driver update, post views count and ExCalibre input files
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Number of interesting news at SoilModels from past week: New Barodesy constitutive model, umat with source code and Plaxis DLL. Thanks to the researchers from the University of Innsbruck (Barbara […]
Not able to run the subroutine ……..error is coming ……UMAT: illegal (negative) actual void ratio detected Can anybody help
Geotechnical software and constitutive model database has just been launched at SoilModels. With this new functionality, users can select a constitutive model and they will directly see in which finite […]
New version of SANISAND umat, including interface for Plaxis, is now available in Download section (https://soilmodels.com/sanisand/). Original implementation has been developed by M. Martinelli, C. Miriano and C. Tamagnini in 2013. This […]
I am trying use sanisand subroutine posted in this website. But it is not working. Getting no values for field variable in the odb. I think i am missing something. […]
If you want to share some material for download at SoilModels with the others such as the presentations in this post: Presentations on hypoplasticity applications, D. Mašín, NGI 2017 please […]
Based on some requests, I share here two presentations on hypoplasticity applications. One is related to simulation of various boundary value problems, the other focuses on simulation of cyclic and […]
The Tochnog Professional finite element program is now available as free version with 100 elements. It can be downloaded without registration from http://www.tochnogprofessional.nl. Several commercial and free pre- and postprocessors […]
The ALERT Olek Zienkiewicz Winterschool 2018 on Natural versus compacted clayey soils: from micro to macro behaviour and modelling will be held from 5th to 9th of November 2018 in […]
A new element test driver named “Triax” has been included into the list of calibration software available at https://soilmodels.com/triax including source code and pre-compiled Windows and Linux executables. I have been using […]
Calculation of coordinates of climbing formwork using hypoplasticity and pressuremter tests
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Our article published in the latest issue of Ground Engineering 10/2017. Great combination of cone-pressueremeter-testing (CPM) by FUGRO and advanced 3D Fem modelling by GEOLINK using hypoplastic constitutive equations to […]
At the following link, you may find a short presentation on SoilModels from the ICSMGE conference in Seoul, Korea, September 2017. Please feel free to distribute the presentation among your […]
Two new umats are available now at SoilModels, thanks to Wolfgang Felling of the University of Innsbruck. These umats use different integration scheme compared with the other sand hypoplastic umats. […]
Dear collagues and friends, SoilModels has been around for 10 years now. Though we found the project succesfull in disseminating advanced material models in geotechnical engineering, we still see it […]
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Recent posts
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Papers on Excalibre 19.1.2022
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Abaqus UEL Hypoplasticity 16.1.2022
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Hypoplasticity UDSM and Preferred Units (SI or Imperial) in Plaxis 14.1.2022
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Three PhD positions in soil mechanics at Charles University, Czech Republic 13.1.2022
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Hypoplastic UMAT & Void Ratio 15.12.2021
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Transient Dynamic analysis (U-P formulation) 4.12.2021
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Survey on Teaching / Learning Constitutive Models 11.11.2021
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Modelling TX monotonic compressive test with ABAQUS and SANISAND – not working 3.11.2021
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Vibration foundation behavior 16.10.2021
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Getting started with UMAT for Hypoplastic clay model in ABAQUS 15.10.2021
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consistent tangent stiffness calculation in hypoplasticity sand UMAT 7.10.2021
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stress order in hypo umat seems to be incorrect 6.10.2021
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