Veryst Engineering PolyUMod 4.5.0


Veryst Engineering PolyUMod 4.5.0 Veryst Engineering offers the PolyUMod Library of user-material models for non-linear finite element modeling of engineering polymers and biomaterials. This library provides numerically efficient material models that can be used to very accurately represent the large strain viscoplastic response of materials. The PolyUMod library contains general purpose material models that cover virtually all polymer systems, including thermoplastics, thermosets, elastomers, foams, filled plastics, and biomaterials. Specific models have also been developed for particular formulations such as fluoropolymers, PLA, and UHMWPE. The Veryst material model library contains more than 20 material models, including the following: Anisotropic Bergstrom-Boyce Model: An extension of the ANSYS native Bergstrom-Boyce model that enables accurate predictions of fiber filled elastomers. Three Network Model: An exceptionally accurate viscoplastic material model that was specifically developed for isotropic thermoplastics. Responsive Elastomer Foam Model: A very fast table-based lookup model that can predict the highly non-linear response of elastomer foams. Parallel Network Model: An advanced modular material model framework that can be used to predict the thermo-mechanical, anisotropic, viscoplastic response of any polymer. All models in the PolyUMod library can be used to also predict failure and damage accumulation. The PolyUMod library is provided as a shared library and is provided with a floating network license. After the PolyUMod library has been installed, the additional material models become as easy to use as any of the native ANSYS material models. Veryst Engineering has also developed the MCalibration parameter extraction software that makes it easy to calibrate any PolyUMod or ANSYS native material model. The calibration software allows the user to analyze a set of experimental data files in order to determine the optimal model parameters. The typical work flow includes: (1) Import all relevant experimental data. This includes test data from tension, compression, shear, biaxial, and plane strain tests, as well as DMA data, dogbone-shaped tension tests, compression tests with friction, stress relaxation, creep, permanent set, Poisson’s ratio, and fatigue data. (2) Select one material model that should be calibrated to the complete set of experimental data. (3) Run the calibration using a fully automatic calibration algorithm.


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