FE Material Model from Tension with Necking
2022-01-17
Part 2: Calibrating a material model from tension with necking experimental data is surprisingly difficult. This article explains one approach to do it.
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Category: PolyUMod Abaqus
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Abaqus 2022 – A Great Update for Linux Users
2022-01-15
Abaqus 2022 contains some really nice improvements for Linux users. This article summarizes the key improvements.
Cold Drawing FE Simulations of Polycarbonate
2022-01-11
Part 1: Tutorial on how to predict the cold drawing or necking response of thermoplastics (such as polycarbonate).
Stiffness Non-Linearity of Viscoplastic Material Models
2022-01-04
Tutorial on how to make the PolyUMod TN and TNV models better capture the stiffness non-linearity before yielding.
Best PEEK Material Model in 2022
2021-12-27
This article examines which material model is best for PEEK. Some of the basic plasticity models are surprisingly bad.
PolyUMod Now Includes UCREEPNETWORK and VUCREEPNETWORK Models
2021-12-09
Version 6.4.0 of PolyUMod includes 2 advanced UCREEPNETWORK and VUCREEPNETWORK models that can be used with the Abaqus PRF model.
PolyUMod Abaqus Hint: When to Set the ORIENT Flag for Anisotropic Materials
2021-09-06
Tutorial on how and when to set the ORIENT flag with using Abaqus and an anisotropic material model from the PolyUMod material model.
PolyUMod with Abaqus/Standard: Make Your FE Simulation Faster
2021-09-06
In this video I will show have to make most Abaqus/Standard simulations that use the PolyUMod library run faster (and with larger time increments). The key is to set an Abaqus time incrementation setting.
What Material Model Can Predict Different Stiffnesses in Tension and Compression?
2021-07-05
Soft polymer foams, and some other materials, often exhibit different stiffnesses in uniaxial tension and compression. Most material models cannot predict this type of behavior, but there are some excellent choices for this.
Plot Viscoplastic Strain in PolyUMod and MCalibration
2021-03-09
Description of how to plot the viscoplastic strain magnitude when using PolyUMod or MCalibration.