## Blog Articles

2022-09-04

This article shows how to fix 2 common problems with viscoplastic material models: E-modulus and large-strain stress.

2022-08-27

Last article is in my series on basic FEA theory. In this article I put everything together to solve for the displacements.

2022-08-19

This article is part 4 in my series on basic FEA theory. The focus is on how to calculate the element stiffness matrix.

2022-08-16

The article shows how to calculate the strain components from the nodal displacements in a linear finite element calculation.

2022-08-09

The focus of this article is on how isoparametric shape functions can be used to simplify the calculation of the principle of virtual work.

2022-08-02

Derivation of the equation of virtual work in discretized form. The presented results are the foundation to the Finite Element method.

2022-07-26

Tutorial on how to write a full FE solver in 200 lines of Python code. This is part 2 in our series. The focus is on using an external file.

2022-07-19

Tutorial on how to write a full FE solver in 100 lines of Python. This is part one of this tutorial series.

2022-07-12

Did you know that there are 3 different ways to formulate an anisotropic hyperelastic model? This article explains how.

2022-07-05

Quick tutorial on how to use the clipboard to improve the MCalibration workflow.

2022-06-28

The Mooney-Rivlin model be calibrated to monotonic uniaxial tension data, but in most cases it is better to use more experimental data.

2022-06-21

Summary of 4 things that are important to know about the Ogden model. It is a very powerful model, but it can be difficult to use correctly.

2022-06-14

The Arruda-Boyce Eight-Chain model is a micromechanism-inspired hyperelastic model that works very well. This article explains the theory.

2022-06-07

Did you know that almost all FE simulations underpredict the residual strain / displacements in BENDING. This article explains why.

2022-05-31

Did you know that it is possible to predict permanent set using a viscoelastic material model? This article explains how.

2022-05-24

Time-Temperature Superposition (TSS) is an excellent tool when a material is thermorheologically simple. This article explains how.

2022-05-17

Summary of the new key features in MCalibration 6.6.0.

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

It is easy to quickly calibrate a temperature-dependent Abaqus Hyperelastic model. This article shows how using MCalibration.

2022-04-28

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

This article explains what experiments to perform on a thermoplastic in order to get the required data for material model calibration.

2022-04-12

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

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.