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.
Tochnog Professional Company only provides support when you pay for a support contract. Without such contract, you need to help yourself with the manuals and example files. See also http://www.tochnogprofessional.nl/support/page.php.
License & Website
References
Available Constitutive Models
Clay Hypoplasticity (Mašín, 2014)

SANISAND (Dafalias and Manzari, 2004)

Sand Hypoplasticity (von Wolffersdorff, 1996)

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

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

UMAT Implementation of Sand Hypoplasticity by UIBK

SANISAND Abaqus UMAT and Plaxis implementations

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

Related SoilModels Forum Posts
Presentations on hypoplasticity applications, D. Mašín, NGI 2017

Automatic calibration software ExCalibre has been launched

Tochnog Professional 100 element free version, www.tochnogprofessional.nl

EasyTochnog input file generator

Calculation of coordinates of climbing formwork using hypoplasticity and pressuremter tests
