Calibrate the BB-Model using a Single Experiment
2022-04-04
It is possible to calibrate a two-network visco-plastic material model to experimental data from a single experiment. This article explains how to do it.
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Category: Theory
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Which Ansys Creep Model is Best?
2022-03-21
Review of different creep models that are available in Ansys Mechanical. In the article I will recommend which to use and which to avoid.
Which Abaqus Creep Model Should You Use?
2022-03-11
Tutorial on Abaqus creep laws, which 2 you should not use, and which are the best. I also discuss how creep models work for polymers.
Should You Use Isotropic Hardening Plasticity for Polymers?
2022-03-08
Article discussing how isotropic hardening plasticity works, when you should use it, and issues that can occur if you use it incorrectly.
Make Your Own Hyperelastic Model
2022-02-14
One way to quickly improve the accuracy of the Arruda-Boyce model is to add one more strain energy funcion.
Gent Hyperelasticity
2022-02-08
Gent hyperelasticity theory and parameter calibration. The Gent model is available in Ansys Mechanical and COMSOL Multiphysics.
3 Reasons the Poisson’s Ratio is not Useful
2022-02-01
This article presents 3 reasons the Poisson’s ratio is not useful, and also explains how you can fix the problems.
Cold Drawing FE Simulations of Polycarbonate
2022-01-11
Part 1: Tutorial on how to predict the cold drawing or necking response of thermoplastics (such as polycarbonate).
Blatz-Ko Model
2022-01-03
The Blatz-Ko model can be used for both foams and rubber-like materials. This article explains the theory.
Anisotropic Hill Strain
2021-12-22
Anisotropic materials often need an effective strain measure. The Hill strain is useful in those cases.