
Residual Strain Prediction
Most tests are in displacement control, but residual strain is measured in load control. This article explains how to use this mixed data.
Most tests are in displacement control, but residual strain is measured in load control. This article explains how to use this mixed data.
One way to quickly improve the accuracy of the Arruda-Boyce model is to add one more strain energy funcion.
Gent hyperelasticity theory and parameter calibration. The Gent model is available in Ansys Mechanical and COMSOL Multiphysics.
This article presents 3 reasons the Poisson’s ratio is not useful, and also explains how you can fix the problems.
Part 3 in our series on how to calibrate a material model from tension force data. This article focuses on using Abaqus for the calculations.
Part 2: Calibrating a material model from tension with necking experimental data is surprisingly difficult. This article explains one approach to do it.
Part 1: Tutorial on how to predict the cold drawing or necking response of thermoplastics (such as polycarbonate).
Tutorial on how to make the PolyUMod TN and TNV models better capture the stiffness non-linearity before yielding.
The Blatz-Ko model can be used for both foams and rubber-like materials. This article explains the theory.
This article examines which material model is best for PEEK. Some of the basic plasticity models are surprisingly bad.
This video shows how you can work with, and change to different units in MCalibration.
Investigation of how important the bulk modulus is in a FE simulation. Using MCalibration and Abaqus, I show that most of the time the bulk modulus has virtually no influence on the FE results.