Best Material Model for Nylon (PA66)
2022-11-01
Nylon is a commonly used in industrial applications. This article examines which material model is most accurate for Nylon PA66.
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Category: Theory
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WLF or Arrhenius – Which is Better?
2022-10-25
This article shows that the WLF equation is always the same or better than the Arrhenius model.
Flow Cessation is Important for Viscoplasticity
2022-09-04
This article shows how to fix 2 common problems with viscoplastic material models: E-modulus and large-strain stress.
Basic FEA Theory – Part 5 – Solve For Displacements
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.
Basic FEA Theory – Part 4 – Element Stiffness Matrix
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.
Basic FEA Theory – Part 3 – Strain Calculation
2022-08-16
The article shows how to calculate the strain components from the nodal displacements in a linear finite element calculation.
Basic FEA Theory – Part 2 – Isoparametric Shape Functions
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.
Basic FEA Theory – Part 1 – 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.
Full Finite Element Solver in 200 Lines of Python
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.
Full Finite Element Solver in 100 Lines of Python
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.
Introduction to Anisotropic Hyperelasticity
2022-07-12
Did you know that there are 3 different ways to formulate an anisotropic hyperelastic model? This article explains how.
Calibrating the Mooney-Rivlin Model
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.