Blog Articles

MCalibration can optimize both the specimen shape and material parameters at the same time. Here's how!
Demo of how to simulate a Teflon seal using Ansys using a viscoplastic material model, without any experimental data.
How to run COMSOL Multiphysics using an input file and a command prompt. It is easy using the Java API.
Guide to using MCalibration and PolyUMod with COMSOL Multiphysics. A complete start-to-finish tutorial is presented.
Soft polymer foams, and some other materials, often exhibit different stiffnesses in uniaxial tension and compression. Most material models cannot predict this type of behavior, but there are some excellent
A material model is considered Drucker's stable if an increase in strain results in an increase in stress. In some cases it can be important to enforce that a material
Instructions for how to make sure Ansys Mechanical finds and uses a PolyUMod material model.
Here is a presentation about (non-linear) material modeling of polymers. I gave the presentation on 2021-06-24.
Introduction In this article I will show how you can quickly convert any Ansys material model (in APDL format) into stress-strain predictions using MCalibration. That is, I will show how
It is easy to create stress-strain plots for any Abaqus material model using MCalibration. This article shows how.
MCalibration supports not only a large selection of pre-defined material models, but you can also define your own material model using a Template.
Demonstration of how to use different FE solvers and solver templates in MCalibration.
The Extended Tube model is one of the most accurate hyperelastic material models available, but it can be difficult to use if you don't understand how the material parameters influence
Short description of how to setup MCalibration so it can use Ansys as a solver.
The Ogden-Roxburgh Mullins effect model is highly non-linear. In this article I will graphically illustrate how the different parameters influence the predicted stress-strain response.
Tutorial showing how to calibrate a PolyUMod TNV stress-strain and failure model to experimental data.
Tutorial showing how to use MCalibration to calibrate the Abaqus Johnson-Cook model with failure to experimental data.
Introduction to how MCalibration and PolyUMod can be used with Altair Radioss. This is a great starting point if you are new to our software.
Resulting is a term used in the book "Thinking in Bets" to describe how not to make decisions when all you have is limited information. In this article I will
Review of some practical differences between linear and non-linear viscoelasticity.
Quick demo of how to setup a strain amplitude sweep in MCalibration.
Succinct tutorial on how to setup Altair Radioss to use a PolyUMod material model.
How to instantaneously calibrate an Abaqus linear viscoelastic material model using DMA data and MCalibration.
Detailed description of how the toe-in compensation function in MCalibration works. This can be very useful to quickly clean up data.
Discussion about how to test and model permanent set in rubber materials. With the right material model it is possible!
Information about our free course on how to use MCalibration. The course covers experimental cleanup and model calibration.
Complete step-by-step tutorial on how to use HyperMesh to setup a Radioss FE model with a PolyUMod material model.
Short tutorial on how to run Radioss with the PolyUMod library from the command line.
Here's a summary of 5 common mistakes when using Hyperelasticity in a FE model. I see these errors frequently, so read this article to make sure you don't make them
Description of how to plot the viscoplastic strain magnitude when using PolyUMod or MCalibration.