Category: Theory

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

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

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

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.

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

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

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.

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

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