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jbRektor
@jbrektor
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Joined: Nov 2, 2019
Last seen: May 30, 2024
Topics: 1 / Replies: 23
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RE: Experiments and material model for high strain rate and large strain impact on polyurethane

Hello Kristine, That sounds like an interesting project! What is the max strain and strain rate that you expect to see? DMA is a reasonable start, b...

4 years ago
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RE: Linking PolyUmod to LS-DYNA

I'm happy to help. First question: does your k-file work if you run it from a command line: "C:\Program Files\PolymerFEM\PolyUMod\PolyUMod_LSDYNA\ls...

4 years ago
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RE: ANSYS viscoelastic properties from DMA data

I just created an article and a YouTube movie that shows how you can use MCalibration to convert your storage and loss modulus data into a material mo...

4 years ago
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RE: Writing a UMAT subroutine for thermo-metallurgical model

Here are a few comments: 1. Yes. That sounds right to me. 2. I'm not sure about that. You will have to study the documentation for the DEFLUX subr...

4 years ago
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RE: Large deformation Visco elastic simulation of polymer

1. Yes, you can use a linear elastic material model (Prony series) at large deformations. 2. I would try full integration (not reduced integration)....

4 years ago
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RE: Viscoplastic Model UMAT Example

Good question. You can request a free trial license to my implementation of the TNM or BB models on the PolymerFEM.com homepage. If you are a student,...

4 years ago
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RE: VUMAT for invariant-based hyperelastic model yield zig-zag shape under compression

It looks like traditional hourglassing but since you see the same problem with C3D8 elements, that cannot be the reason for the behavior. Another ex...

4 years ago
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RE: How to run MCalibration on Centos 8?

Note the same command also works on RedHat 7 and CentOS 7.

4 years ago
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RE: BB model implementation in ANSYS

Remember that MCalibration can very quickly and easily calibrate the ANSYS BB-model. -Jorgen

5 years ago
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