UDM Library

Itasca is pleased to provide a collection of selected User Defined constitutive Models (UDM) for Itasca software (FLAC, FLAC3D, UDEC, 3DEC, and PFC). The usage of the UDMs available at this site is free of charge. However, the C++ UDM option for the corresponding Itasca software product, available for purchase, is required.

Itasca clients interested in contributing their own UDMs are invited to submit them.

Please note that the UDMs are provided for your convenience, as is, and Itasca takes no responsibility for the correctness or your usage of the UDMs.

Software
Category
Search Phrase
Model Name Version Category Software
Coupled Elastic-Softening Joint Model 1 Concrete 3DEC
UBCHYST 2002 Sand FLAC2D
PM4Silt 2.1 Low-Plasticity Silt and Clay FLAC2D
PM4Sand 3.3 Sand FLAC2D
Dafalais-Manzari 4.0 Sand FLAC3D
Fracture Energy Softening Model v7 1 Concrete 3DEC
Edinburgh-Elasto-Plastic-Adhesive (EEPA) contact model 1 Soil PFC
HZCrush contact model 1 Sand PFC
Johnson-Kendall-Roberts (JKR) Contact Model 1 Soil PFC
Fracture Energy Softening Model 1 Concrete 3DEC
Hill Contact Model 4 Backfill PFC
Beam Contact Model 1 Backfill PFC
Wang2D 1 Sand FLAC2D
UBCSAND 904aR Sand FLAC2D
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