Hi, I am working in Abaqus, aiming to model double porosity clay consolidation data by using hypoplastic clay model with meta stable structure. First, i just wanted to verify basic […]
Simulation code related to paper "Kadlíček, T. and Mašín, D. (2020). The strength reduction method in clay hypoplasticity. Computers and Geotechnics (in print)".
Hi, I wanted to ask if the variables/parameters defined in the online Hypoplastic model manual for PLAXIS (https://web.natur.cuni.cz/uhigug/masin/plaxumat/node6.html) are the same for the ABAQUS UMAT?
Prof. David Masin, I am posting the queries I have emailed you earlier which you have answered and therefore I am posting it here as per your request. I wish […]
Interface to study soil-structure interaction in Plaxis 3D (Clay Hypoplasticity)
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Hello, I am trying to simulate the behavior of helical anchors (also called screw anchors) using PLAXIS 3D and a clay hypoplasticity constitutive model. The helical anchor shaft is simulated […]
The 2014 Masin hypoplasticity for clays has been implemented in Tochnog Professional under guidance of Dr. David Masin. This implementation includes structure, intergranular strains and visco effects. Extensions to the […]
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.
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 […]
A PhD-level course on hypoplastic constitutive modelling intended for both academia and practitioners.
Mašín, D. (2015) Part 4: Determination of material parameters, PhD course “Hypoplasticity for Practical Applications” handouts [Presentation]
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Handouts of Part 4 of the PhD course "Hypoplasticity for Practical Applications" by D. Mašín, describing calibration of material parameters.
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 […]
Download package of sand and clay hypoplasticity for GeoSlope SIGMA/W finite element code. Based on umat, comes along with the source code.
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 […]
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 […]
Mašín, D. (2017) Presentation on hypoplasticity modelling of cyclic and static response of offshore foundations, Presentation delivered at Norwegian Geotechnical Institute [Presentation]
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This presentation have been delivered by D. Mašín at Norwegian Geotechnical Institute, Oslo, 7. 11. 2017
Mašín, D. (2017) Presentation on applications of hypoplasticity, various case studies, Presentation delivered at Norwegian Geotechnical Institute [Presentation]
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This presentation have been delivered by D. Mašín at Norwegian Geotechnical Institute, Oslo, 8. 11. 2017.
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.
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Recent posts
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A question about the hypoplastic model in clay 22.9.2022
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A High-Cycle Accumulation Model for Sand (Niemunis et al., 2005) 6.9.2022
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Problem in calculating Lateral displacement of the pile using Hypoplastic clay model 2.9.2022
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GTS NX 25.7.2022
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Special issue of Computers and Structures “Numerical simulation of multi‐physics phenomena in geotechnical structures” 25.7.2022
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Post-doctorate position at Nantes University (France) in geotechnical analysis of mutualized anchors 6.7.2022
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Post-doc position at Charles University in the field of THM analysis of unsaturated and heated soil cyclic loading 30.5.2022
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Shear modulus degragation 12.5.2022
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