This article shows how to fix 2 common problems with viscoplastic material models: E-modulus and large-strain stress.
Last article is in my series on basic FEA theory. In this article I put everything together to solve for the displacements.
This article is part 4 in my series on basic FEA theory. The focus is on how to calculate the element stiffness matrix.
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.
Quick tutorial on how to use the clipboard to improve the MCalibration workflow.
The Mooney-Rivlin model be calibrated to monotonic uniaxial tension data, but in most cases it is better to use more experimental data.
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 almost all FE simulations underpredict the residual strain / displacements in BENDING. This article explains why.
Did you know that it is possible to predict permanent set using a viscoelastic material model? This article explains how.
Time-Temperature Superposition (TSS) is an excellent tool when a material is thermorheologically simple. This article explains how.
Summary of the new key features in MCalibration 6.6.0.
Did you know that MCalibration can be used from the command line? This article lists the available command line arguments.
The LS-DYNA *Mat_Add_Inelalstic is a new and useful model framework that can easily be calibrated using MCalibration.
It is easy to quickly calibrate a temperature-dependent Abaqus Hyperelastic model. This article shows how using MCalibration.
It is easy to quickly calibrate a temperature-dependent Ansys Hyperelastic model. This article shows how using MCalibration.
This article shows what experiments to perform on a thermoset in order to calibrate a continuum level material model.
This article explains what experiments to perform on a thermoplastic in order to get the required data for material model calibration.
This article explains what experiments to perform on a rubber material in order to get the required data for material model calibration.
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.
The Tension Test load case in MCalibration is useful for calibrating an Abaqus material model to uniaxial tension data with necking.
Information about our upcoming webinar on how to quickly use experimental data to calibrate a non-linear viscoplastic material model.
Review of different creep models that are available in Ansys Mechanical. In the article I will recommend which to use and which to avoid.
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.
Article discussing how isotropic hardening plasticity works, when you should use it, and issues that can occur if you use it incorrectly.