Blog Articles

2022-05-16
Did you know that MCalibration can be used from the command line? This article lists the available command line arguments.
2022-05-10
The LS-DYNA *Mat_Add_Inelalstic is a new and useful model framework that can easily be calibrated using MCalibration.
2022-04-29
Abaqus Temperature Hyperelastic
It is easy to quickly calibrate a temperature-dependent Abaqus Hyperelastic model. This article shows how using MCalibration.
2022-04-28
Ansys Hyperelastic
It is easy to quickly calibrate a temperature-dependent Ansys Hyperelastic model. This article shows how using MCalibration.
2022-04-26
This article shows what experiments to perform on a thermoset in order to calibrate a continuum level material model.
2022-04-19
Testing Thermoplastics
This article explains what experiments to perform on a thermoplastic in order to get the required data for material model calibration.
2022-04-12
Test Plan Rubbers
This article explains what experiments to perform on a rubber material in order to get the required data for material model calibration.
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.
2022-03-28
The Tension Test load case in MCalibration is useful for calibrating an Abaqus material model to uniaxial tension data with necking.
2022-03-22
PolymerFEM Webinar
Information about our upcoming webinar on how to quickly use experimental data to calibrate a non-linear viscoplastic material model.
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.
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.
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.
2022-02-28
Demonstration of how you can use the PolyUMod Material Database model for LLDPE. This is an excellent model for generic LLDPE.
2022-02-22
Most tests are in displacement control, but residual strain is measured in load control. This article explains how to use this mixed data.
2022-02-14
BAM Model
One way to quickly improve the accuracy of the Arruda-Boyce model is to add one more strain energy funcion.
2022-02-08
Gent Hyperelasticity
Gent hyperelasticity theory and parameter calibration. The Gent model is available in Ansys Mechanical and COMSOL Multiphysics.
2022-02-01
This article presents 3 reasons the Poisson's ratio is not useful, and also explains how you can fix the problems.
2022-01-25
Part 3 in our series on how to calibrate a material model from tension force data. This article focuses on using Abaqus for the calculations.
2022-01-17
Part 2: Calibrating a material model from tension with necking experimental data is surprisingly difficult. This article explains one approach to do it.
2022-01-15
Abaqus 2022 contains some really nice improvements for Linux users. This article summarizes the key improvements.
2022-01-11
Part 1: Tutorial on how to predict the cold drawing or necking response of thermoplastics (such as polycarbonate).
2022-01-04
Tutorial on how to make the PolyUMod TN and TNV models better capture the stiffness non-linearity before yielding.
2022-01-03
The Blatz-Ko model can be used for both foams and rubber-like materials. This article explains the theory.
2021-12-27
This article examines which material model is best for PEEK. Some of the basic plasticity models are surprisingly bad.
2021-12-22
Anisotropic materials often need an effective strain measure. The Hill strain is useful in those cases.
2021-12-20
Definition of the Hill Stress and how to use it in material models.
2021-12-13
This video shows how you can work with, and change to different units in MCalibration.
2021-12-09
Version 6.4.0 of PolyUMod includes 2 advanced UCREEPNETWORK and VUCREEPNETWORK models that can be used with the Abaqus PRF model.
2021-12-03
This article examines the difference between simple shear, pure shear, and planar tension.