Stress Triaxiality and Thermoplastics
2021-08-09
The applied stress triaxiality influences the mechanical response of thermoplastic materials in non-intuitive ways. In this article, I will explain how.
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Category: Theory
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Material Modeling of Polymers
2021-06-24
Here is a presentation about (non-linear) material modeling of polymers. I gave the presentation on 2021-06-24.
Practical Differences Between Linear and Non-Linear Viscoelasticity
2021-05-10
Review of some practical differences between linear and non-linear viscoelasticity.
5 Common Mistakes when using Hyperelasticity
2021-03-14
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 too.
What is Better: Stress Relaxation or Cyclic Loading?
2021-02-15
Material Model Calibration When you work with material models it is always important to think about the type and quality of experimental data that you
Abaqus PRF Model – Network Parameters
2021-02-12
Discussion about why the MCalibration implementation of the Abaqus PRF model is different than the Abaqus version.
Hyperfoam Modeling of Soft Foams
2021-01-31
The theory behind the common Hyperfoam, Ogden foam, and Hill foam models. Also covers how to calibrate these useful models.
Holzapfel-Gasser-Ogden Model
2021-01-24
Detailed discussion about the Holzapfel-Gasser-Ogden (HGO) model. Features, theory, and calibration approaches are covered.
5 Common Mistakes when Analyzing Simple Shear
2021-01-10
Description of how to analyze simple shear data. Also discusses how to perform simple shear tests and how to use the data in MCalibration.
Can Friction Cause Viscoelasticity?
2021-01-02
Can friction cause viscoelasticity in a compression test? What is negative barreling? This article discusses the theory of uniaxial compression testing
Payne Effect: Theory and Modeling
2020-12-28
What is the Payne Effect, and how can it be modeled? All of that is covered in this tutorial.