Tochnog Professional

Title

Tochnog Professional

Description

[Official Distributor Text]
Tochnog Professional is a Finite Element program offering a wide variety of geotechnical and mechanical options; modern material laws including the most recent rate independent and viscous hypoplasticity models; stress, temperature and groundwater pressure analysis; lagrangian and eulerian mesh in space; quasi-static and dynamic calculations; a full libary of isoparametric elements in 1D, 2D and 3D and also featuring typical structural elements like beams, interfaces, springs, etc.; geometry based boundary conditions; mesh independent postprocessing by selecting physical points, lines and surfaces; 2D and 3D mesh refinement; phased modelling stages and extensive parallelisation. Tochnog accepts user defined models in ABAQUS UMAT format.

License & Website

Commercial, free trial available.
https://www.feat.nl

Available Constitutive Models

Clay Hypoplasticity (Mašín, 2014)

David Mašín|13.1.2018|Constitutive Models|0 |

Clay hypoplasticity is an advanced incrementally non-linear constitutive model based on critical state soil mechanics developed specifically for simulation of fine-grained materials.

SANISAND (Dafalias and Manzari, 2004)

Yannis Dafalias|13.1.2018|Constitutive Models|0 |

SANISAND is an advanced elasto-plastic model based on a concept of rotational hardening incorporating the effects of fabric-dilatancy.

Sand Hypoplasticity (von Wolffersdorff, 1996)

Peter-Andreas von Wolffersdorff|13.1.2018|Constitutive Models|0 |

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.

Barodesy (Kolymbas, Medicus, Schneider-Muntau, Fellin)

Dimitrios Kolymbas|22.1.2018|Constitutive Models|0 |

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.

[Other constitutive models, not present in SoilModels database]
Linear Elastic, Linear Elastic with Transverse Isotropy, Elastic Borja Tamagnini, Elastic Polynomial, Mohr-Coulomb, Cam-Clay, Cap elasticity, Di-Prisco Plasticity, Drucker-Prager, Cam-Clay for Bonded Soils, Hardening Soil, Multilaminate Plasticity, Viscoplasticity

Related Downloads

SANISAND Abaqus UMAT and Plaxis implementations

David Mašín|8.9.2017|5 |

UMAT and Plaxis implementations of SANISAND constitutive model by Dafalias and Manzari (2004).

Clay and Sand hypoplasticity UMAT and Plaxis implementations, including UMAT-Plaxis interface

David Mašín|2.9.2017|7 |

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

UMAT Implementation of Sand Hypoplasticity by UIBK

Wolfgang Fellin|29.9.2017|7 |

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).

Download package of barodesy – ABAQUS umat (source code) and Plaxis dll

Barbara Schneider-Muntau|22.1.2018|0 |

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.

Image Gallery

Presentations on hypoplasticity applications, D. Mašín, NGI 2017

David Mašín|4.1.2018|Finite Elements|0 |

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 […]

Course “Hypoplasticity for Practical Applications”

David Mašín|13.3.2018|Event Announcements|3 |

A PhD-level course on hypoplastic constitutive modelling intended for both academia and practitioners.

Automatic calibration software ExCalibre has been launched

David Mašín|18.4.2018|Constitutive Modelling|0 |

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 […]

Tochnog Professional 100 element free version

dennis roddeman|3.1.2018|Finite Elements|0 |

The Tochnog Professional finite element program is now available as free version with 100 elements. It can be downloaded without registration from http://www.feat.nl. Several commercial and free pre- and postprocessors […]

new hypoplasticity laws in Tochnog Professional

dennis roddeman|8.8.2018|Finite Elements|0 |

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 […]

Calculation of coordinates of climbing formwork using hypoplasticity and pressuremter tests

Christian Schwab|20.10.2017|Finite Elements|0 |

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 […]